cpython-lru_cache-weakref: Lib/subprocess.py annotate

annotate Lib/subprocess.py @ 73798:6cde416ef03b

Credit Per Øyvind Karlsen for the initial implementation of the lzma module (issue #6715).

author	Nadeem Vawda <nadeem.vawda@gmail.com>
date	Thu, 01 Dec 2011 01:18:27 +0200
parents	90f81045613a
children	f452d7d5470d

rev	line source
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1 # subprocess - Subprocesses with accessible I/O streams
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	2 #
33731 53c468d0955b Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 33727 diff changeset	3 # For more information about this module, see PEP 324.
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	4 #
35633 45aaa436b945 Changed license header: Now simply referring to PSF. This closes bug Peter Astrand <astrand@lysator.liu.se> parents: 34818 diff changeset	5 # Copyright (c) 2003-2005 by Peter Astrand <astrand@lysator.liu.se>
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	6 #
34587 e9ec2ce340fd Added copyright notice: Peter Astrand <astrand@lysator.liu.se> parents: 34575 diff changeset	7 # Licensed to PSF under a Contributor Agreement.
35633 45aaa436b945 Changed license header: Now simply referring to PSF. This closes bug Peter Astrand <astrand@lysator.liu.se> parents: 34818 diff changeset	8 # See http://www.python.org/2.4/license for licensing details.
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	9
33776 c5d951a0e0c3 Fix docstring formatting of escape sequences. Raymond Hettinger <python@rcn.com> parents: 33770 diff changeset	10 r"""subprocess - Subprocesses with accessible I/O streams
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	11
33770 c6aac03474c5 return codes are available on all platforms, not just on Unix Fredrik Lundh <fredrik@pythonware.com> parents: 33751 diff changeset	12 This module allows you to spawn processes, connect to their
c6aac03474c5 return codes are available on all platforms, not just on Unix Fredrik Lundh <fredrik@pythonware.com> parents: 33751 diff changeset	13 input/output/error pipes, and obtain their return codes. This module
c6aac03474c5 return codes are available on all platforms, not just on Unix Fredrik Lundh <fredrik@pythonware.com> parents: 33751 diff changeset	14 intends to replace several other, older modules and functions, like:
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	15
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	16 os.system
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	17 os.spawn*
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	18
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	19 Information about how the subprocess module can be used to replace these
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	20 modules and functions can be found below.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	21
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	22
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	23
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	24 Using the subprocess module
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	25 ===========================
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	26 This module defines one class called Popen:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	27
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	28 class Popen(args, bufsize=0, executable=None,
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	29 stdin=None, stdout=None, stderr=None,
66889 59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	30 preexec_fn=None, close_fds=True, shell=False,
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	31 cwd=None, env=None, universal_newlines=False,
59605 768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	32 startupinfo=None, creationflags=0,
66889 59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	33 restore_signals=True, start_new_session=False, pass_fds=()):
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	34
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	35
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	36 Arguments are:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	37
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	38 args should be a string, or a sequence of program arguments. The
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	39 program to execute is normally the first item in the args sequence or
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	40 string, but can be explicitly set by using the executable argument.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	41
66867 eab8f91f5754 Get rid of the close_fds DeprecationWarning. Changes the default on a per Gregory P. Smith <greg@mad-scientist.com> parents: 66723 diff changeset	42 On POSIX, with shell=False (default): In this case, the Popen class
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	43 uses os.execvp() to execute the child program. args should normally
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	44 be a sequence. A string will be treated as a sequence with the string
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	45 as the only item (the program to execute).
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	46
66867 eab8f91f5754 Get rid of the close_fds DeprecationWarning. Changes the default on a per Gregory P. Smith <greg@mad-scientist.com> parents: 66723 diff changeset	47 On POSIX, with shell=True: If args is a string, it specifies the
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	48 command string to execute through the shell. If args is a sequence,
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	49 the first item specifies the command string, and any additional items
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	50 will be treated as additional shell arguments.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	51
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	52 On Windows: the Popen class uses CreateProcess() to execute the child
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	53 program, which operates on strings. If args is a sequence, it will be
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	54 converted to a string using the list2cmdline method. Please note that
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	55 not all MS Windows applications interpret the command line the same
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	56 way: The list2cmdline is designed for applications using the same
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	57 rules as the MS C runtime.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	58
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	59 bufsize, if given, has the same meaning as the corresponding argument
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	60 to the built-in open() function: 0 means unbuffered, 1 means line
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	61 buffered, any other positive value means use a buffer of
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	62 (approximately) that size. A negative bufsize means to use the system
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	63 default, which usually means fully buffered. The default value for
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	64 bufsize is 0 (unbuffered).
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	65
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	66 stdin, stdout and stderr specify the executed programs' standard
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	67 input, standard output and standard error file handles, respectively.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	68 Valid values are PIPE, an existing file descriptor (a positive
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	69 integer), an existing file object, and None. PIPE indicates that a
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	70 new pipe to the child should be created. With None, no redirection
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	71 will occur; the child's file handles will be inherited from the
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	72 parent. Additionally, stderr can be STDOUT, which indicates that the
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	73 stderr data from the applications should be captured into the same
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	74 file handle as for stdout.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	75
66867 eab8f91f5754 Get rid of the close_fds DeprecationWarning. Changes the default on a per Gregory P. Smith <greg@mad-scientist.com> parents: 66723 diff changeset	76 On POSIX, if preexec_fn is set to a callable object, this object will be
59605 768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	77 called in the child process just before the child is executed. The use
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	78 of preexec_fn is not thread safe, using it in the presence of threads
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	79 could lead to a deadlock in the child process before the new executable
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	80 is executed.
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	81
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	82 If close_fds is true, all file descriptors except 0, 1 and 2 will be
66867 eab8f91f5754 Get rid of the close_fds DeprecationWarning. Changes the default on a per Gregory P. Smith <greg@mad-scientist.com> parents: 66723 diff changeset	83 closed before the child process is executed. The default for close_fds
66889 59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	84 varies by platform: Always true on POSIX. True when stdin/stdout/stderr
59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	85 are None on Windows, false otherwise.
59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	86
59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	87 pass_fds is an optional sequence of file descriptors to keep open between the
59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	88 parent and child. Providing any pass_fds implicitly sets close_fds to true.
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	89
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	90 if shell is true, the specified command will be executed through the
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	91 shell.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	92
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	93 If cwd is not None, the current directory will be changed to cwd
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	94 before the child is executed.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	95
66867 eab8f91f5754 Get rid of the close_fds DeprecationWarning. Changes the default on a per Gregory P. Smith <greg@mad-scientist.com> parents: 66723 diff changeset	96 On POSIX, if restore_signals is True all signals that Python sets to
59605 768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	97 SIG_IGN are restored to SIG_DFL in the child process before the exec.
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	98 Currently this includes the SIGPIPE, SIGXFZ and SIGXFSZ signals. This
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	99 parameter does nothing on Windows.
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	100
66867 eab8f91f5754 Get rid of the close_fds DeprecationWarning. Changes the default on a per Gregory P. Smith <greg@mad-scientist.com> parents: 66723 diff changeset	101 On POSIX, if start_new_session is True, the setsid() system call will be made
59605 768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	102 in the child process prior to executing the command.
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	103
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	104 If env is not None, it defines the environment variables for the new
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	105 process.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	106
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	107 If universal_newlines is true, the file objects stdout and stderr are
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	108 opened as a text files, but lines may be terminated by any of '\n',
66867 eab8f91f5754 Get rid of the close_fds DeprecationWarning. Changes the default on a per Gregory P. Smith <greg@mad-scientist.com> parents: 66723 diff changeset	109 the Unix end-of-line convention, '\r', the old Macintosh convention or
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	110 '\r\n', the Windows convention. All of these external representations
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	111 are seen as '\n' by the Python program. Note: This feature is only
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	112 available if Python is built with universal newline support (the
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	113 default). Also, the newlines attribute of the file objects stdout,
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	114 stdin and stderr are not updated by the communicate() method.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	115
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	116 The startupinfo and creationflags, if given, will be passed to the
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	117 underlying CreateProcess() function. They can specify things such as
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	118 appearance of the main window and priority for the new process.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	119 (Windows only)
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	120
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	121
50074 024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	122 This module also defines some shortcut functions:
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	123
34111 73b09c2b788b Changed signature of call function to avoid confusion: this 'args' is not the same as the one to the Popen constructor Peter Astrand <astrand@lysator.liu.se> parents: 34052 diff changeset	124 call(popenargs, *kwargs):
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	125 Run command with arguments. Wait for command to complete, then
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	126 return the returncode attribute.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	127
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	128 The arguments are the same as for the Popen constructor. Example:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	129
59471 ac80884ddcc3 Merged revisions 78736,78759,78761,78767,78788-78789 via svnmerge from Florent Xicluna <florent.xicluna@gmail.com> parents: 59207 diff changeset	130 >>> retcode = subprocess.call(["ls", "-l"])
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	131
34302 998fb1e1c8e9 New subprocess utility function: check_call. Closes #1071764. Peter Astrand <astrand@lysator.liu.se> parents: 34111 diff changeset	132 check_call(popenargs, *kwargs):
998fb1e1c8e9 New subprocess utility function: check_call. Closes #1071764. Peter Astrand <astrand@lysator.liu.se> parents: 34111 diff changeset	133 Run command with arguments. Wait for command to complete. If the
998fb1e1c8e9 New subprocess utility function: check_call. Closes #1071764. Peter Astrand <astrand@lysator.liu.se> parents: 34111 diff changeset	134 exit code was zero then return, otherwise raise
998fb1e1c8e9 New subprocess utility function: check_call. Closes #1071764. Peter Astrand <astrand@lysator.liu.se> parents: 34111 diff changeset	135 CalledProcessError. The CalledProcessError object will have the
39442 654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38673 diff changeset	136 return code in the returncode attribute.
34302 998fb1e1c8e9 New subprocess utility function: check_call. Closes #1071764. Peter Astrand <astrand@lysator.liu.se> parents: 34111 diff changeset	137
998fb1e1c8e9 New subprocess utility function: check_call. Closes #1071764. Peter Astrand <astrand@lysator.liu.se> parents: 34111 diff changeset	138 The arguments are the same as for the Popen constructor. Example:
998fb1e1c8e9 New subprocess utility function: check_call. Closes #1071764. Peter Astrand <astrand@lysator.liu.se> parents: 34111 diff changeset	139
59471 ac80884ddcc3 Merged revisions 78736,78759,78761,78767,78788-78789 via svnmerge from Florent Xicluna <florent.xicluna@gmail.com> parents: 59207 diff changeset	140 >>> subprocess.check_call(["ls", "-l"])
65109 a68f8763555b Merged revisions 76923,76926,77009,77082-77083,77085,77087,77121 via svnmerge from Georg Brandl <georg@python.org> parents: 63930 diff changeset	141 0
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	142
47331 0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	143 getstatusoutput(cmd):
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	144 Return (status, output) of executing cmd in a shell.
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	145
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	146 Execute the string 'cmd' in a shell with os.popen() and return a 2-tuple
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	147 (status, output). cmd is actually run as '{ cmd ; } 2>&1', so that the
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	148 returned output will contain output or error messages. A trailing newline
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	149 is stripped from the output. The exit status for the command can be
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	150 interpreted according to the rules for the C function wait(). Example:
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	151
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	152 >>> subprocess.getstatusoutput('ls /bin/ls')
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	153 (0, '/bin/ls')
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	154 >>> subprocess.getstatusoutput('cat /bin/junk')
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	155 (256, 'cat: /bin/junk: No such file or directory')
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	156 >>> subprocess.getstatusoutput('/bin/junk')
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	157 (256, 'sh: /bin/junk: not found')
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	158
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	159 getoutput(cmd):
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	160 Return output (stdout or stderr) of executing cmd in a shell.
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	161
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	162 Like getstatusoutput(), except the exit status is ignored and the return
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	163 value is a string containing the command's output. Example:
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	164
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	165 >>> subprocess.getoutput('ls /bin/ls')
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	166 '/bin/ls'
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	167
50074 024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	168 check_output(popenargs, *kwargs):
65109 a68f8763555b Merged revisions 76923,76926,77009,77082-77083,77085,77087,77121 via svnmerge from Georg Brandl <georg@python.org> parents: 63930 diff changeset	169 Run command with arguments and return its output as a byte string.
50074 024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	170
65109 a68f8763555b Merged revisions 76923,76926,77009,77082-77083,77085,77087,77121 via svnmerge from Georg Brandl <georg@python.org> parents: 63930 diff changeset	171 If the exit code was non-zero it raises a CalledProcessError. The
a68f8763555b Merged revisions 76923,76926,77009,77082-77083,77085,77087,77121 via svnmerge from Georg Brandl <georg@python.org> parents: 63930 diff changeset	172 CalledProcessError object will have the return code in the returncode
a68f8763555b Merged revisions 76923,76926,77009,77082-77083,77085,77087,77121 via svnmerge from Georg Brandl <georg@python.org> parents: 63930 diff changeset	173 attribute and output in the output attribute.
50074 024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	174
65109 a68f8763555b Merged revisions 76923,76926,77009,77082-77083,77085,77087,77121 via svnmerge from Georg Brandl <georg@python.org> parents: 63930 diff changeset	175 The arguments are the same as for the Popen constructor. Example:
50074 024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	176
65109 a68f8763555b Merged revisions 76923,76926,77009,77082-77083,77085,77087,77121 via svnmerge from Georg Brandl <georg@python.org> parents: 63930 diff changeset	177 >>> output = subprocess.check_output(["ls", "-l", "/dev/null"])
50074 024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	178
47331 0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	179
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	180 Exceptions
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	181 ----------
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	182 Exceptions raised in the child process, before the new program has
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	183 started to execute, will be re-raised in the parent. Additionally,
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	184 the exception object will have one extra attribute called
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	185 'child_traceback', which is a string containing traceback information
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	186 from the childs point of view.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	187
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	188 The most common exception raised is OSError. This occurs, for
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	189 example, when trying to execute a non-existent file. Applications
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	190 should prepare for OSErrors.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	191
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	192 A ValueError will be raised if Popen is called with invalid arguments.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	193
68463 d674b557600c Add a SubprocessError base class for exceptions in the subprocess module. Gregory P. Smith <greg@krypto.org> parents: 68454 diff changeset	194 Exceptions defined within this module inherit from SubprocessError.
d674b557600c Add a SubprocessError base class for exceptions in the subprocess module. Gregory P. Smith <greg@krypto.org> parents: 68454 diff changeset	195 check_call() and check_output() will raise CalledProcessError if the
68465 bffe5809bfda whitespace fix Gregory P. Smith <greg@krypto.org> parents: 68463 diff changeset	196 called process returns a non-zero return code. TimeoutExpired
68463 d674b557600c Add a SubprocessError base class for exceptions in the subprocess module. Gregory P. Smith <greg@krypto.org> parents: 68454 diff changeset	197 be raised if a timeout was specified and expired.
34302 998fb1e1c8e9 New subprocess utility function: check_call. Closes #1071764. Peter Astrand <astrand@lysator.liu.se> parents: 34111 diff changeset	198
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	199
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	200 Security
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	201 --------
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	202 Unlike some other popen functions, this implementation will never call
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	203 /bin/sh implicitly. This means that all characters, including shell
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	204 metacharacters, can safely be passed to child processes.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	205
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	206
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	207 Popen objects
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	208 =============
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	209 Instances of the Popen class have the following methods:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	210
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	211 poll()
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	212 Check if child process has terminated. Returns returncode
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	213 attribute.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	214
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	215 wait()
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	216 Wait for child process to terminate. Returns returncode attribute.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	217
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	218 communicate(input=None)
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	219 Interact with process: Send data to stdin. Read data from stdout
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	220 and stderr, until end-of-file is reached. Wait for process to
40582 67287ca4e1e8 Merged revisions 53005-53303 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40450 diff changeset	221 terminate. The optional input argument should be a string to be
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	222 sent to the child process, or None, if no data should be sent to
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	223 the child.
33731 53c468d0955b Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 33727 diff changeset	224
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	225 communicate() returns a tuple (stdout, stderr).
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	226
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	227 Note: The data read is buffered in memory, so do not use this
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	228 method if the data size is large or unlimited.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	229
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	230 The following attributes are also available:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	231
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	232 stdin
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	233 If the stdin argument is PIPE, this attribute is a file object
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	234 that provides input to the child process. Otherwise, it is None.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	235
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	236 stdout
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	237 If the stdout argument is PIPE, this attribute is a file object
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	238 that provides output from the child process. Otherwise, it is
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	239 None.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	240
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	241 stderr
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	242 If the stderr argument is PIPE, this attribute is file object that
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	243 provides error output from the child process. Otherwise, it is
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	244 None.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	245
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	246 pid
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	247 The process ID of the child process.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	248
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	249 returncode
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	250 The child return code. A None value indicates that the process
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	251 hasn't terminated yet. A negative value -N indicates that the
66867 eab8f91f5754 Get rid of the close_fds DeprecationWarning. Changes the default on a per Gregory P. Smith <greg@mad-scientist.com> parents: 66723 diff changeset	252 child was terminated by signal N (POSIX only).
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	253
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	254
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	255 Replacing older functions with the subprocess module
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	256 ====================================================
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	257 In this section, "a ==> b" means that b can be used as a replacement
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	258 for a.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	259
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	260 Note: All functions in this section fail (more or less) silently if
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	261 the executed program cannot be found; this module raises an OSError
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	262 exception.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	263
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	264 In the following examples, we assume that the subprocess module is
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	265 imported with "from subprocess import *".
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	266
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	267
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	268 Replacing /bin/sh shell backquote
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	269 ---------------------------------
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	270 output=`mycmd myarg`
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	271 ==>
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	272 output = Popen(["mycmd", "myarg"], stdout=PIPE).communicate()[0]
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	273
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	274
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	275 Replacing shell pipe line
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	276 -------------------------
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	277 output=`dmesg \| grep hda`
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	278 ==>
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	279 p1 = Popen(["dmesg"], stdout=PIPE)
34050 fd1be494c31b Corrected example for replacing shell pipeline. Fixes bug 1073790. Peter Astrand <astrand@lysator.liu.se> parents: 33929 diff changeset	280 p2 = Popen(["grep", "hda"], stdin=p1.stdout, stdout=PIPE)
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	281 output = p2.communicate()[0]
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	282
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	283
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	284 Replacing os.system()
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	285 ---------------------
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	286 sts = os.system("mycmd" + " myarg")
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	287 ==>
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	288 p = Popen("mycmd" + " myarg", shell=True)
39442 654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38673 diff changeset	289 pid, sts = os.waitpid(p.pid, 0)
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	290
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	291 Note:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	292
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	293 * Calling the program through the shell is usually not required.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	294
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	295 * It's easier to look at the returncode attribute than the
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	296 exitstatus.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	297
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	298 A more real-world example would look like this:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	299
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	300 try:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	301 retcode = call("mycmd" + " myarg", shell=True)
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	302 if retcode < 0:
41843 1f7891d84d93 Remove native popen() and fdopen(), replacing them with subprocess calls. Guido van Rossum <guido@python.org> parents: 41732 diff changeset	303 print("Child was terminated by signal", -retcode, file=sys.stderr)
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	304 else:
41843 1f7891d84d93 Remove native popen() and fdopen(), replacing them with subprocess calls. Guido van Rossum <guido@python.org> parents: 41732 diff changeset	305 print("Child returned", retcode, file=sys.stderr)
1f7891d84d93 Remove native popen() and fdopen(), replacing them with subprocess calls. Guido van Rossum <guido@python.org> parents: 41732 diff changeset	306 except OSError as e:
1f7891d84d93 Remove native popen() and fdopen(), replacing them with subprocess calls. Guido van Rossum <guido@python.org> parents: 41732 diff changeset	307 print("Execution failed:", e, file=sys.stderr)
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	308
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	309
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	310 Replacing os.spawn*
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	311 -------------------
33731 53c468d0955b Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 33727 diff changeset	312 P_NOWAIT example:
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	313
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	314 pid = os.spawnlp(os.P_NOWAIT, "/bin/mycmd", "mycmd", "myarg")
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	315 ==>
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	316 pid = Popen(["/bin/mycmd", "myarg"]).pid
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	317
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	318
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	319 P_WAIT example:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	320
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	321 retcode = os.spawnlp(os.P_WAIT, "/bin/mycmd", "mycmd", "myarg")
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	322 ==>
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	323 retcode = call(["/bin/mycmd", "myarg"])
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	324
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	325
33731 53c468d0955b Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 33727 diff changeset	326 Vector example:
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	327
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	328 os.spawnvp(os.P_NOWAIT, path, args)
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	329 ==>
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	330 Popen([path] + args[1:])
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	331
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	332
33731 53c468d0955b Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 33727 diff changeset	333 Environment example:
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	334
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	335 os.spawnlpe(os.P_NOWAIT, "/bin/mycmd", "mycmd", "myarg", env)
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	336 ==>
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	337 Popen(["/bin/mycmd", "myarg"], env={"PATH": "/usr/bin"})
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	338 """
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	339
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	340 import sys
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	341 mswindows = (sys.platform == "win32")
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	342
41845 9ce8fa0a0899 Make test_subprocess work. Fix universal newlines in io.py. Guido van Rossum <guido@python.org> parents: 41843 diff changeset	343 import io
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	344 import os
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	345 import time
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	346 import traceback
44810 fa6cee14dcba Merged revisions 60094-60123 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44160 diff changeset	347 import gc
46505 63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	348 import signal
59605 768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	349 import builtins
66676 b37da60c9072 issue7213 + issue2320: Cause a DeprecationWarning if the close_fds argument is Gregory P. Smith <greg@mad-scientist.com> parents: 66622 diff changeset	350 import warnings
69154 158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	351 import errno
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	352
34302 998fb1e1c8e9 New subprocess utility function: check_call. Closes #1071764. Peter Astrand <astrand@lysator.liu.se> parents: 34111 diff changeset	353 # Exception classes used by this module.
68463 d674b557600c Add a SubprocessError base class for exceptions in the subprocess module. Gregory P. Smith <greg@krypto.org> parents: 68454 diff changeset	354 class SubprocessError(Exception): pass
d674b557600c Add a SubprocessError base class for exceptions in the subprocess module. Gregory P. Smith <greg@krypto.org> parents: 68454 diff changeset	355
d674b557600c Add a SubprocessError base class for exceptions in the subprocess module. Gregory P. Smith <greg@krypto.org> parents: 68454 diff changeset	356
d674b557600c Add a SubprocessError base class for exceptions in the subprocess module. Gregory P. Smith <greg@krypto.org> parents: 68454 diff changeset	357 class CalledProcessError(SubprocessError):
50074 024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	358 """This exception is raised when a process run by check_call() or
024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	359 check_output() returns a non-zero exit status.
024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	360 The exit status will be stored in the returncode attribute;
024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	361 check_output() will also store the output in the output attribute.
024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	362 """
024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	363 def __init__(self, returncode, cmd, output=None):
39442 654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38673 diff changeset	364 self.returncode = returncode
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38673 diff changeset	365 self.cmd = cmd
50074 024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	366 self.output = output
39442 654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38673 diff changeset	367 def __str__(self):
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38673 diff changeset	368 return "Command '%s' returned non-zero exit status %d" % (self.cmd, self.returncode)
654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38673 diff changeset	369
34302 998fb1e1c8e9 New subprocess utility function: check_call. Closes #1071764. Peter Astrand <astrand@lysator.liu.se> parents: 34111 diff changeset	370
68463 d674b557600c Add a SubprocessError base class for exceptions in the subprocess module. Gregory P. Smith <greg@krypto.org> parents: 68454 diff changeset	371 class TimeoutExpired(SubprocessError):
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	372 """This exception is raised when the timeout expires while waiting for a
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	373 child process.
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	374 """
68618 a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	375 def __init__(self, cmd, timeout, output=None):
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	376 self.cmd = cmd
68618 a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	377 self.timeout = timeout
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	378 self.output = output
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	379
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	380 def __str__(self):
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	381 return ("Command '%s' timed out after %s seconds" %
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	382 (self.cmd, self.timeout))
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	383
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	384
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	385 if mswindows:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	386 import threading
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	387 import msvcrt
60923 91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	388 import _subprocess
91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	389 class STARTUPINFO:
91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	390 dwFlags = 0
91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	391 hStdInput = None
91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	392 hStdOutput = None
91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	393 hStdError = None
91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	394 wShowWindow = 0
91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	395 class pywintypes:
91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	396 error = IOError
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	397 else:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	398 import select
55602 680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	399 _has_poll = hasattr(select, 'poll')
70467 75ca834df824 The _posixsubprocess module is now required on POSIX. Gregory P. Smith <greg@krypto.org> parents: 70289 diff changeset	400 import _posixsubprocess
75ca834df824 The _posixsubprocess module is now required on POSIX. Gregory P. Smith <greg@krypto.org> parents: 70289 diff changeset	401 _create_pipe = _posixsubprocess.cloexec_pipe
59605 768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	402
55626 fb5857f903fe Merged revisions 73917 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 55617 diff changeset	403 # When select or poll has indicated that the file is writable,
fb5857f903fe Merged revisions 73917 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 55617 diff changeset	404 # we can write up to _PIPE_BUF bytes without risk of blocking.
fb5857f903fe Merged revisions 73917 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 55617 diff changeset	405 # POSIX defines PIPE_BUF as >= 512.
fb5857f903fe Merged revisions 73917 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 55617 diff changeset	406 _PIPE_BUF = getattr(select, 'PIPE_BUF', 512)
fb5857f903fe Merged revisions 73917 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 55617 diff changeset	407
fb5857f903fe Merged revisions 73917 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 55617 diff changeset	408
47331 0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	409 __all__ = ["Popen", "PIPE", "STDOUT", "call", "check_call", "getstatusoutput",
68600 eaf93e156dff Issue #5870: Add subprocess.DEVNULL constant. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68587 diff changeset	410 "getoutput", "check_output", "CalledProcessError", "DEVNULL"]
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	411
60923 91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	412 if mswindows:
69690 4c3ae7d04664 merge Brian Curtin <brian@python.org> parents: 69155 69689 diff changeset	413 from _subprocess import (CREATE_NEW_CONSOLE, CREATE_NEW_PROCESS_GROUP,
69689 80971f71b0d9 Further fix #7838. CREATE_NEW_CONSOLE was exposed, but none of the Brian Curtin <brian@python.org> parents: 69154 diff changeset	414 STD_INPUT_HANDLE, STD_OUTPUT_HANDLE,
80971f71b0d9 Further fix #7838. CREATE_NEW_CONSOLE was exposed, but none of the Brian Curtin <brian@python.org> parents: 69154 diff changeset	415 STD_ERROR_HANDLE, SW_HIDE,
80971f71b0d9 Further fix #7838. CREATE_NEW_CONSOLE was exposed, but none of the Brian Curtin <brian@python.org> parents: 69154 diff changeset	416 STARTF_USESTDHANDLES, STARTF_USESHOWWINDOW)
70050 654d473f2951 normalize whitespace. Gregory P. Smith <greg@krypto.org> parents: 70049 diff changeset	417
69690 4c3ae7d04664 merge Brian Curtin <brian@python.org> parents: 69155 69689 diff changeset	418 __all__.extend(["CREATE_NEW_CONSOLE", "CREATE_NEW_PROCESS_GROUP",
69689 80971f71b0d9 Further fix #7838. CREATE_NEW_CONSOLE was exposed, but none of the Brian Curtin <brian@python.org> parents: 69154 diff changeset	419 "STD_INPUT_HANDLE", "STD_OUTPUT_HANDLE",
80971f71b0d9 Further fix #7838. CREATE_NEW_CONSOLE was exposed, but none of the Brian Curtin <brian@python.org> parents: 69154 diff changeset	420 "STD_ERROR_HANDLE", "SW_HIDE",
80971f71b0d9 Further fix #7838. CREATE_NEW_CONSOLE was exposed, but none of the Brian Curtin <brian@python.org> parents: 69154 diff changeset	421 "STARTF_USESTDHANDLES", "STARTF_USESHOWWINDOW"])
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	422 try:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	423 MAXFD = os.sysconf("SC_OPEN_MAX")
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	424 except:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	425 MAXFD = 256
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	426
71903 8ca7f109ce79 Issue #12650: Fix a race condition where a subprocess.Popen could leak Charles-François Natali <neologix@free.fr> parents: 71524 diff changeset	427 # This lists holds Popen instances for which the underlying process had not
8ca7f109ce79 Issue #12650: Fix a race condition where a subprocess.Popen could leak Charles-François Natali <neologix@free.fr> parents: 71524 diff changeset	428 # exited at the time its __del__ method got called: those processes are wait()ed
8ca7f109ce79 Issue #12650: Fix a race condition where a subprocess.Popen could leak Charles-François Natali <neologix@free.fr> parents: 71524 diff changeset	429 # for synchronously from _cleanup() when a new Popen object is created, to avoid
8ca7f109ce79 Issue #12650: Fix a race condition where a subprocess.Popen could leak Charles-François Natali <neologix@free.fr> parents: 71524 diff changeset	430 # zombie processes.
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	431 _active = []
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	432
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	433 def _cleanup():
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	434 for inst in _active[:]:
48680 7779af388aec Merged revisions 65459,65472,65481,65518,65536,65581,65609,65637,65641,65644-65645 via svnmerge from Georg Brandl <georg@python.org> parents: 48494 diff changeset	435 res = inst._internal_poll(_deadstate=sys.maxsize)
71903 8ca7f109ce79 Issue #12650: Fix a race condition where a subprocess.Popen could leak Charles-François Natali <neologix@free.fr> parents: 71524 diff changeset	436 if res is not None:
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 37048 diff changeset	437 try:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 37048 diff changeset	438 _active.remove(inst)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 37048 diff changeset	439 except ValueError:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 37048 diff changeset	440 # This can happen if two threads create a new Popen instance.
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 37048 diff changeset	441 # It's harmless that it was already removed, so ignore.
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 37048 diff changeset	442 pass
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	443
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	444 PIPE = -1
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	445 STDOUT = -2
68600 eaf93e156dff Issue #5870: Add subprocess.DEVNULL constant. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68587 diff changeset	446 DEVNULL = -3
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	447
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	448
59209 1f158238fa76 Merged revisions 78524 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 57156 diff changeset	449 def _eintr_retry_call(func, *args):
1f158238fa76 Merged revisions 78524 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 57156 diff changeset	450 while True:
1f158238fa76 Merged revisions 78524 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 57156 diff changeset	451 try:
1f158238fa76 Merged revisions 78524 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 57156 diff changeset	452 return func(*args)
73085 90f81045613a Use InterruptedError instead of checking for EINTR Antoine Pitrou <solipsis@pitrou.net> parents: 72168 diff changeset	453 except InterruptedError:
90f81045613a Use InterruptedError instead of checking for EINTR Antoine Pitrou <solipsis@pitrou.net> parents: 72168 diff changeset	454 continue
59209 1f158238fa76 Merged revisions 78524 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 57156 diff changeset	455
1f158238fa76 Merged revisions 78524 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 57156 diff changeset	456
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	457 def call(popenargs, timeout=None, *kwargs):
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	458 """Run command with arguments. Wait for command to complete or
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	459 timeout, then return the returncode attribute.
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	460
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	461 The arguments are the same as for the Popen constructor. Example:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	462
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	463 retcode = call(["ls", "-l"])
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	464 """
72168 86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	465 with Popen(popenargs, *kwargs) as p:
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	466 try:
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	467 return p.wait(timeout=timeout)
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	468 except:
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	469 p.kill()
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	470 p.wait()
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	471 raise
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	472
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	473
34302 998fb1e1c8e9 New subprocess utility function: check_call. Closes #1071764. Peter Astrand <astrand@lysator.liu.se> parents: 34111 diff changeset	474 def check_call(popenargs, *kwargs):
998fb1e1c8e9 New subprocess utility function: check_call. Closes #1071764. Peter Astrand <astrand@lysator.liu.se> parents: 34111 diff changeset	475 """Run command with arguments. Wait for command to complete. If
998fb1e1c8e9 New subprocess utility function: check_call. Closes #1071764. Peter Astrand <astrand@lysator.liu.se> parents: 34111 diff changeset	476 the exit code was zero then return, otherwise raise
998fb1e1c8e9 New subprocess utility function: check_call. Closes #1071764. Peter Astrand <astrand@lysator.liu.se> parents: 34111 diff changeset	477 CalledProcessError. The CalledProcessError object will have the
39442 654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38673 diff changeset	478 return code in the returncode attribute.
34302 998fb1e1c8e9 New subprocess utility function: check_call. Closes #1071764. Peter Astrand <astrand@lysator.liu.se> parents: 34111 diff changeset	479
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	480 The arguments are the same as for the call function. Example:
34302 998fb1e1c8e9 New subprocess utility function: check_call. Closes #1071764. Peter Astrand <astrand@lysator.liu.se> parents: 34111 diff changeset	481
998fb1e1c8e9 New subprocess utility function: check_call. Closes #1071764. Peter Astrand <astrand@lysator.liu.se> parents: 34111 diff changeset	482 check_call(["ls", "-l"])
998fb1e1c8e9 New subprocess utility function: check_call. Closes #1071764. Peter Astrand <astrand@lysator.liu.se> parents: 34111 diff changeset	483 """
998fb1e1c8e9 New subprocess utility function: check_call. Closes #1071764. Peter Astrand <astrand@lysator.liu.se> parents: 34111 diff changeset	484 retcode = call(popenargs, *kwargs)
998fb1e1c8e9 New subprocess utility function: check_call. Closes #1071764. Peter Astrand <astrand@lysator.liu.se> parents: 34111 diff changeset	485 if retcode:
50074 024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	486 cmd = kwargs.get("args")
024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	487 if cmd is None:
024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	488 cmd = popenargs[0]
39442 654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38673 diff changeset	489 raise CalledProcessError(retcode, cmd)
50074 024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	490 return 0
024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	491
024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	492
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	493 def check_output(popenargs, timeout=None, *kwargs):
65109 a68f8763555b Merged revisions 76923,76926,77009,77082-77083,77085,77087,77121 via svnmerge from Georg Brandl <georg@python.org> parents: 63930 diff changeset	494 r"""Run command with arguments and return its output as a byte string.
50074 024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	495
024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	496 If the exit code was non-zero it raises a CalledProcessError. The
024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	497 CalledProcessError object will have the return code in the returncode
024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	498 attribute and output in the output attribute.
024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	499
024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	500 The arguments are the same as for the Popen constructor. Example:
024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	501
024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	502 >>> check_output(["ls", "-l", "/dev/null"])
65109 a68f8763555b Merged revisions 76923,76926,77009,77082-77083,77085,77087,77121 via svnmerge from Georg Brandl <georg@python.org> parents: 63930 diff changeset	503 b'crw-rw-rw- 1 root root 1, 3 Oct 18 2007 /dev/null\n'
50074 024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	504
024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	505 The stdout argument is not allowed as it is used internally.
65109 a68f8763555b Merged revisions 76923,76926,77009,77082-77083,77085,77087,77121 via svnmerge from Georg Brandl <georg@python.org> parents: 63930 diff changeset	506 To capture standard error in the result, use stderr=STDOUT.
50074 024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	507
024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	508 >>> check_output(["/bin/sh", "-c",
65109 a68f8763555b Merged revisions 76923,76926,77009,77082-77083,77085,77087,77121 via svnmerge from Georg Brandl <georg@python.org> parents: 63930 diff changeset	509 ... "ls -l non_existent_file ; exit 0"],
a68f8763555b Merged revisions 76923,76926,77009,77082-77083,77085,77087,77121 via svnmerge from Georg Brandl <georg@python.org> parents: 63930 diff changeset	510 ... stderr=STDOUT)
a68f8763555b Merged revisions 76923,76926,77009,77082-77083,77085,77087,77121 via svnmerge from Georg Brandl <georg@python.org> parents: 63930 diff changeset	511 b'ls: non_existent_file: No such file or directory\n'
50074 024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	512 """
024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	513 if 'stdout' in kwargs:
024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	514 raise ValueError('stdout argument not allowed, it will be overridden.')
72168 86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	515 with Popen(popenargs, stdout=PIPE, *kwargs) as process:
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	516 try:
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	517 output, unused_err = process.communicate(timeout=timeout)
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	518 except TimeoutExpired:
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	519 process.kill()
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	520 output, unused_err = process.communicate()
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	521 raise TimeoutExpired(process.args, timeout, output=output)
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	522 except:
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	523 process.kill()
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	524 process.wait()
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	525 raise
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	526 retcode = process.poll()
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	527 if retcode:
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	528 raise CalledProcessError(retcode, process.args, output=output)
50074 024a9897c651 Merged revisions 67511,67536-67537,67543 via svnmerge from Georg Brandl <georg@python.org> parents: 48752 diff changeset	529 return output
34302 998fb1e1c8e9 New subprocess utility function: check_call. Closes #1071764. Peter Astrand <astrand@lysator.liu.se> parents: 34111 diff changeset	530
998fb1e1c8e9 New subprocess utility function: check_call. Closes #1071764. Peter Astrand <astrand@lysator.liu.se> parents: 34111 diff changeset	531
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	532 def list2cmdline(seq):
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	533 """
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	534 Translate a sequence of arguments into a command line
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	535 string, using the same rules as the MS C runtime:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	536
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	537 1) Arguments are delimited by white space, which is either a
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	538 space or a tab.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	539
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	540 2) A string surrounded by double quotation marks is
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	541 interpreted as a single argument, regardless of white space
62404 5de52eb252da Merged revisions 82076 via svnmerge from Jean-Paul Calderone <exarkun@divmod.com> parents: 61585 diff changeset	542 contained within. A quoted string can be embedded in an
5de52eb252da Merged revisions 82076 via svnmerge from Jean-Paul Calderone <exarkun@divmod.com> parents: 61585 diff changeset	543 argument.
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	544
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	545 3) A double quotation mark preceded by a backslash is
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	546 interpreted as a literal double quotation mark.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	547
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	548 4) Backslashes are interpreted literally, unless they
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	549 immediately precede a double quotation mark.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	550
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	551 5) If backslashes immediately precede a double quotation mark,
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	552 every pair of backslashes is interpreted as a literal
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	553 backslash. If the number of backslashes is odd, the last
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	554 backslash escapes the next double quotation mark as
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	555 described in rule 3.
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	556 """
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	557
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	558 # See
57156 667d9779cad6 Merged revisions 76170 via svnmerge from Eric Smith <eric@trueblade.com> parents: 55626 diff changeset	559 # http://msdn.microsoft.com/en-us/library/17w5ykft.aspx
667d9779cad6 Merged revisions 76170 via svnmerge from Eric Smith <eric@trueblade.com> parents: 55626 diff changeset	560 # or search http://msdn.microsoft.com for
667d9779cad6 Merged revisions 76170 via svnmerge from Eric Smith <eric@trueblade.com> parents: 55626 diff changeset	561 # "Parsing C++ Command-Line Arguments"
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	562 result = []
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	563 needquote = False
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	564 for arg in seq:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	565 bs_buf = []
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	566
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	567 # Add a space to separate this argument from the others
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	568 if result:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	569 result.append(' ')
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	570
62404 5de52eb252da Merged revisions 82076 via svnmerge from Jean-Paul Calderone <exarkun@divmod.com> parents: 61585 diff changeset	571 needquote = (" " in arg) or ("\t" in arg) or not arg
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	572 if needquote:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	573 result.append('"')
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	574
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	575 for c in arg:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	576 if c == '\\':
33731 53c468d0955b Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 33727 diff changeset	577 # Don't know if we need to double yet.
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	578 bs_buf.append(c)
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	579 elif c == '"':
44810 fa6cee14dcba Merged revisions 60094-60123 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44160 diff changeset	580 # Double backslashes.
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	581 result.append('\\' * len(bs_buf)*2)
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	582 bs_buf = []
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	583 result.append('\\"')
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	584 else:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	585 # Normal char
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	586 if bs_buf:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	587 result.extend(bs_buf)
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	588 bs_buf = []
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	589 result.append(c)
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	590
44810 fa6cee14dcba Merged revisions 60094-60123 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44160 diff changeset	591 # Add remaining backslashes, if any.
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	592 if bs_buf:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	593 result.extend(bs_buf)
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	594
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	595 if needquote:
34675 8f0456425715 Corrected bug in list2cmdline wrt backslashes. Fixes #1083306. Peter Astrand <astrand@lysator.liu.se> parents: 34672 diff changeset	596 result.extend(bs_buf)
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	597 result.append('"')
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	598
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	599 return ''.join(result)
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	600
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	601
47331 0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	602 # Various tools for executing commands and looking at their output and status.
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	603 #
66867 eab8f91f5754 Get rid of the close_fds DeprecationWarning. Changes the default on a per Gregory P. Smith <greg@mad-scientist.com> parents: 66723 diff changeset	604 # NB This only works (and is only relevant) for POSIX.
47331 0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	605
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	606 def getstatusoutput(cmd):
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	607 """Return (status, output) of executing cmd in a shell.
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	608
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	609 Execute the string 'cmd' in a shell with os.popen() and return a 2-tuple
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	610 (status, output). cmd is actually run as '{ cmd ; } 2>&1', so that the
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	611 returned output will contain output or error messages. A trailing newline
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	612 is stripped from the output. The exit status for the command can be
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	613 interpreted according to the rules for the C function wait(). Example:
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	614
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	615 >>> import subprocess
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	616 >>> subprocess.getstatusoutput('ls /bin/ls')
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	617 (0, '/bin/ls')
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	618 >>> subprocess.getstatusoutput('cat /bin/junk')
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	619 (256, 'cat: /bin/junk: No such file or directory')
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	620 >>> subprocess.getstatusoutput('/bin/junk')
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	621 (256, 'sh: /bin/junk: not found')
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	622 """
72168 86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	623 with os.popen('{ ' + cmd + '; } 2>&1', 'r') as pipe:
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	624 try:
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	625 text = pipe.read()
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	626 sts = pipe.close()
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	627 except:
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	628 process = pipe._proc
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	629 process.kill()
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	630 process.wait()
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	631 raise
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	632 if sts is None:
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	633 sts = 0
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	634 if text[-1:] == '\n':
86b7f14485c9 Issue #12494: Close pipes and kill process on error in subprocess functions Victor Stinner <victor.stinner@haypocalc.com> parents: 71909 diff changeset	635 text = text[:-1]
47331 0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	636 return sts, text
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	637
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	638
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	639 def getoutput(cmd):
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	640 """Return output (stdout or stderr) of executing cmd in a shell.
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	641
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	642 Like getstatusoutput(), except the exit status is ignored and the return
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	643 value is a string containing the command's output. Example:
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	644
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	645 >>> import subprocess
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	646 >>> subprocess.getoutput('ls /bin/ls')
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	647 '/bin/ls'
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	648 """
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	649 return getstatusoutput(cmd)[1]
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	650
0525cd5b2582 The commands module has been removed. The getoutput() and getstatusoutput() Brett Cannon <bcannon@gmail.com> parents: 46505 diff changeset	651
66889 59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	652 _PLATFORM_DEFAULT_CLOSE_FDS = object()
66867 eab8f91f5754 Get rid of the close_fds DeprecationWarning. Changes the default on a per Gregory P. Smith <greg@mad-scientist.com> parents: 66723 diff changeset	653
eab8f91f5754 Get rid of the close_fds DeprecationWarning. Changes the default on a per Gregory P. Smith <greg@mad-scientist.com> parents: 66723 diff changeset	654
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	655 class Popen(object):
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	656 def __init__(self, args, bufsize=0, executable=None,
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	657 stdin=None, stdout=None, stderr=None,
66889 59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	658 preexec_fn=None, close_fds=_PLATFORM_DEFAULT_CLOSE_FDS,
59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	659 shell=False, cwd=None, env=None, universal_newlines=False,
59605 768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	660 startupinfo=None, creationflags=0,
66692 296e6f85f56d issue6559: Adds a pass_fds parameter to subprocess.Popen that allows the caller Gregory P. Smith <greg@mad-scientist.com> parents: 66676 diff changeset	661 restore_signals=True, start_new_session=False,
296e6f85f56d issue6559: Adds a pass_fds parameter to subprocess.Popen that allows the caller Gregory P. Smith <greg@mad-scientist.com> parents: 66676 diff changeset	662 pass_fds=()):
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	663 """Create new Popen instance."""
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	664 _cleanup()
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	665
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 37048 diff changeset	666 self._child_created = False
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	667 self._input = None
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	668 self._communication_started = False
41984 e420039368b7 The bufsize argument to Popen() should accept None meaning the default (0). Guido van Rossum <guido@python.org> parents: 41969 diff changeset	669 if bufsize is None:
e420039368b7 The bufsize argument to Popen() should accept None meaning the default (0). Guido van Rossum <guido@python.org> parents: 41969 diff changeset	670 bufsize = 0 # Restore default
41592 1e5a2a2b18ee Fix various spots where int/long and str/unicode unification Walter Dörwald <walter@livinglogic.de> parents: 41554 diff changeset	671 if not isinstance(bufsize, int):
34052 79d2ae0a62ef Raise TypeError if bufsize argument is not an integer. Patch 1071755, slightly modified. Peter Astrand <astrand@lysator.liu.se> parents: 34050 diff changeset	672 raise TypeError("bufsize must be an integer")
79d2ae0a62ef Raise TypeError if bufsize argument is not an integer. Patch 1071755, slightly modified. Peter Astrand <astrand@lysator.liu.se> parents: 34050 diff changeset	673
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	674 if mswindows:
33735 1383c4692af7 Folded long lines. Tim Peters <tim.peters@gmail.com> parents: 33731 diff changeset	675 if preexec_fn is not None:
1383c4692af7 Folded long lines. Tim Peters <tim.peters@gmail.com> parents: 33731 diff changeset	676 raise ValueError("preexec_fn is not supported on Windows "
1383c4692af7 Folded long lines. Tim Peters <tim.peters@gmail.com> parents: 33731 diff changeset	677 "platforms")
66889 59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	678 any_stdio_set = (stdin is not None or stdout is not None or
59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	679 stderr is not None)
59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	680 if close_fds is _PLATFORM_DEFAULT_CLOSE_FDS:
59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	681 if any_stdio_set:
59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	682 close_fds = False
59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	683 else:
59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	684 close_fds = True
59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	685 elif close_fds and any_stdio_set:
59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	686 raise ValueError(
59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	687 "close_fds is not supported on Windows platforms"
59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	688 " if you redirect stdin/stdout/stderr")
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	689 else:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	690 # POSIX
66889 59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	691 if close_fds is _PLATFORM_DEFAULT_CLOSE_FDS:
59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	692 close_fds = True
59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	693 if pass_fds and not close_fds:
59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	694 warnings.warn("pass_fds overriding close_fds.", RuntimeWarning)
59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	695 close_fds = True
33735 1383c4692af7 Folded long lines. Tim Peters <tim.peters@gmail.com> parents: 33731 diff changeset	696 if startupinfo is not None:
1383c4692af7 Folded long lines. Tim Peters <tim.peters@gmail.com> parents: 33731 diff changeset	697 raise ValueError("startupinfo is only supported on Windows "
1383c4692af7 Folded long lines. Tim Peters <tim.peters@gmail.com> parents: 33731 diff changeset	698 "platforms")
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	699 if creationflags != 0:
33735 1383c4692af7 Folded long lines. Tim Peters <tim.peters@gmail.com> parents: 33731 diff changeset	700 raise ValueError("creationflags is only supported on Windows "
1383c4692af7 Folded long lines. Tim Peters <tim.peters@gmail.com> parents: 33731 diff changeset	701 "platforms")
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	702
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	703 self.args = args
33731 53c468d0955b Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 33727 diff changeset	704 self.stdin = None
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	705 self.stdout = None
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	706 self.stderr = None
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	707 self.pid = None
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	708 self.returncode = None
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	709 self.universal_newlines = universal_newlines
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	710
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	711 # Input and output objects. The general principle is like
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	712 # this:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	713 #
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	714 # Parent Child
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	715 # ------ -----
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	716 # p2cwrite ---stdin---> p2cread
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	717 # c2pread <--stdout--- c2pwrite
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	718 # errread <--stderr--- errwrite
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	719 #
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	720 # On POSIX, the child objects are file descriptors. On
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	721 # Windows, these are Windows file handles. The parent objects
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	722 # are file descriptors on both platforms. The parent objects
59605 768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	723 # are -1 when not using PIPEs. The child objects are -1
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	724 # when not redirecting.
33731 53c468d0955b Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 33727 diff changeset	725
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	726 (p2cread, p2cwrite,
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	727 c2pread, c2pwrite,
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	728 errread, errwrite) = self._get_handles(stdin, stdout, stderr)
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	729
67358 8af6e8fc0205 In subprocess, wrap pipe fds before launching the child. Hopefully this Antoine Pitrou <solipsis@pitrou.net> parents: 67331 diff changeset	730 # We wrap OS handles before launching the child, otherwise a
8af6e8fc0205 In subprocess, wrap pipe fds before launching the child. Hopefully this Antoine Pitrou <solipsis@pitrou.net> parents: 67331 diff changeset	731 # quickly terminating child could make our fds unwrappable
8af6e8fc0205 In subprocess, wrap pipe fds before launching the child. Hopefully this Antoine Pitrou <solipsis@pitrou.net> parents: 67331 diff changeset	732 # (see #8458).
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	733
40893 32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40775 diff changeset	734 if mswindows:
59619 c45f21705ecb Fix an oversight in r78946 which causes failure in the subprocess module on Windows. Florent Xicluna <florent.xicluna@gmail.com> parents: 59613 diff changeset	735 if p2cwrite != -1:
51981 d77172eb6fe7 Merged revisions 70137 via svnmerge from Hirokazu Yamamoto <ocean-city@m2.ccsnet.ne.jp> parents: 51776 diff changeset	736 p2cwrite = msvcrt.open_osfhandle(p2cwrite.Detach(), 0)
59619 c45f21705ecb Fix an oversight in r78946 which causes failure in the subprocess module on Windows. Florent Xicluna <florent.xicluna@gmail.com> parents: 59613 diff changeset	737 if c2pread != -1:
51981 d77172eb6fe7 Merged revisions 70137 via svnmerge from Hirokazu Yamamoto <ocean-city@m2.ccsnet.ne.jp> parents: 51776 diff changeset	738 c2pread = msvcrt.open_osfhandle(c2pread.Detach(), 0)
59619 c45f21705ecb Fix an oversight in r78946 which causes failure in the subprocess module on Windows. Florent Xicluna <florent.xicluna@gmail.com> parents: 59613 diff changeset	739 if errread != -1:
51981 d77172eb6fe7 Merged revisions 70137 via svnmerge from Hirokazu Yamamoto <ocean-city@m2.ccsnet.ne.jp> parents: 51776 diff changeset	740 errread = msvcrt.open_osfhandle(errread.Detach(), 0)
40893 32c4897b5d46 Merged revisions 53623-53858 via svnmerge from Thomas Wouters <thomas@python.org> parents: 40775 diff changeset	741
59605 768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	742 if p2cwrite != -1:
41845 9ce8fa0a0899 Make test_subprocess work. Fix universal newlines in io.py. Guido van Rossum <guido@python.org> parents: 41843 diff changeset	743 self.stdin = io.open(p2cwrite, 'wb', bufsize)
9ce8fa0a0899 Make test_subprocess work. Fix universal newlines in io.py. Guido van Rossum <guido@python.org> parents: 41843 diff changeset	744 if self.universal_newlines:
71485 5cc536fbd7c1 Issue #12591: Improve support of "universal newlines" in the subprocess Antoine Pitrou <solipsis@pitrou.net> parents: 71228 diff changeset	745 self.stdin = io.TextIOWrapper(self.stdin, write_through=True)
59605 768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	746 if c2pread != -1:
41845 9ce8fa0a0899 Make test_subprocess work. Fix universal newlines in io.py. Guido van Rossum <guido@python.org> parents: 41843 diff changeset	747 self.stdout = io.open(c2pread, 'rb', bufsize)
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	748 if universal_newlines:
41845 9ce8fa0a0899 Make test_subprocess work. Fix universal newlines in io.py. Guido van Rossum <guido@python.org> parents: 41843 diff changeset	749 self.stdout = io.TextIOWrapper(self.stdout)
59605 768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	750 if errread != -1:
41845 9ce8fa0a0899 Make test_subprocess work. Fix universal newlines in io.py. Guido van Rossum <guido@python.org> parents: 41843 diff changeset	751 self.stderr = io.open(errread, 'rb', bufsize)
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	752 if universal_newlines:
41845 9ce8fa0a0899 Make test_subprocess work. Fix universal newlines in io.py. Guido van Rossum <guido@python.org> parents: 41843 diff changeset	753 self.stderr = io.TextIOWrapper(self.stderr)
33731 53c468d0955b Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 33727 diff changeset	754
67358 8af6e8fc0205 In subprocess, wrap pipe fds before launching the child. Hopefully this Antoine Pitrou <solipsis@pitrou.net> parents: 67331 diff changeset	755 try:
8af6e8fc0205 In subprocess, wrap pipe fds before launching the child. Hopefully this Antoine Pitrou <solipsis@pitrou.net> parents: 67331 diff changeset	756 self._execute_child(args, executable, preexec_fn, close_fds,
8af6e8fc0205 In subprocess, wrap pipe fds before launching the child. Hopefully this Antoine Pitrou <solipsis@pitrou.net> parents: 67331 diff changeset	757 pass_fds, cwd, env, universal_newlines,
8af6e8fc0205 In subprocess, wrap pipe fds before launching the child. Hopefully this Antoine Pitrou <solipsis@pitrou.net> parents: 67331 diff changeset	758 startupinfo, creationflags, shell,
8af6e8fc0205 In subprocess, wrap pipe fds before launching the child. Hopefully this Antoine Pitrou <solipsis@pitrou.net> parents: 67331 diff changeset	759 p2cread, p2cwrite,
8af6e8fc0205 In subprocess, wrap pipe fds before launching the child. Hopefully this Antoine Pitrou <solipsis@pitrou.net> parents: 67331 diff changeset	760 c2pread, c2pwrite,
8af6e8fc0205 In subprocess, wrap pipe fds before launching the child. Hopefully this Antoine Pitrou <solipsis@pitrou.net> parents: 67331 diff changeset	761 errread, errwrite,
8af6e8fc0205 In subprocess, wrap pipe fds before launching the child. Hopefully this Antoine Pitrou <solipsis@pitrou.net> parents: 67331 diff changeset	762 restore_signals, start_new_session)
8af6e8fc0205 In subprocess, wrap pipe fds before launching the child. Hopefully this Antoine Pitrou <solipsis@pitrou.net> parents: 67331 diff changeset	763 except:
8af6e8fc0205 In subprocess, wrap pipe fds before launching the child. Hopefully this Antoine Pitrou <solipsis@pitrou.net> parents: 67331 diff changeset	764 # Cleanup if the child failed starting
8af6e8fc0205 In subprocess, wrap pipe fds before launching the child. Hopefully this Antoine Pitrou <solipsis@pitrou.net> parents: 67331 diff changeset	765 for f in filter(None, [self.stdin, self.stdout, self.stderr]):
8af6e8fc0205 In subprocess, wrap pipe fds before launching the child. Hopefully this Antoine Pitrou <solipsis@pitrou.net> parents: 67331 diff changeset	766 try:
8af6e8fc0205 In subprocess, wrap pipe fds before launching the child. Hopefully this Antoine Pitrou <solipsis@pitrou.net> parents: 67331 diff changeset	767 f.close()
8af6e8fc0205 In subprocess, wrap pipe fds before launching the child. Hopefully this Antoine Pitrou <solipsis@pitrou.net> parents: 67331 diff changeset	768 except EnvironmentError:
8af6e8fc0205 In subprocess, wrap pipe fds before launching the child. Hopefully this Antoine Pitrou <solipsis@pitrou.net> parents: 67331 diff changeset	769 # Ignore EBADF or other errors
8af6e8fc0205 In subprocess, wrap pipe fds before launching the child. Hopefully this Antoine Pitrou <solipsis@pitrou.net> parents: 67331 diff changeset	770 pass
8af6e8fc0205 In subprocess, wrap pipe fds before launching the child. Hopefully this Antoine Pitrou <solipsis@pitrou.net> parents: 67331 diff changeset	771 raise
8af6e8fc0205 In subprocess, wrap pipe fds before launching the child. Hopefully this Antoine Pitrou <solipsis@pitrou.net> parents: 67331 diff changeset	772
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	773
43777 0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch. Guido van Rossum <guido@python.org> parents: 43684 diff changeset	774 def _translate_newlines(self, data, encoding):
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch. Guido van Rossum <guido@python.org> parents: 43684 diff changeset	775 data = data.replace(b"\r\n", b"\n").replace(b"\r", b"\n")
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch. Guido van Rossum <guido@python.org> parents: 43684 diff changeset	776 return data.decode(encoding)
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	777
66622 e02021fbfe22 Fix #10554. Added context manager support to Popen objects. Brian Curtin <brian.curtin@gmail.com> parents: 66309 diff changeset	778 def __enter__(self):
e02021fbfe22 Fix #10554. Added context manager support to Popen objects. Brian Curtin <brian.curtin@gmail.com> parents: 66309 diff changeset	779 return self
e02021fbfe22 Fix #10554. Added context manager support to Popen objects. Brian Curtin <brian.curtin@gmail.com> parents: 66309 diff changeset	780
e02021fbfe22 Fix #10554. Added context manager support to Popen objects. Brian Curtin <brian.curtin@gmail.com> parents: 66309 diff changeset	781 def __exit__(self, type, value, traceback):
e02021fbfe22 Fix #10554. Added context manager support to Popen objects. Brian Curtin <brian.curtin@gmail.com> parents: 66309 diff changeset	782 if self.stdout:
e02021fbfe22 Fix #10554. Added context manager support to Popen objects. Brian Curtin <brian.curtin@gmail.com> parents: 66309 diff changeset	783 self.stdout.close()
e02021fbfe22 Fix #10554. Added context manager support to Popen objects. Brian Curtin <brian.curtin@gmail.com> parents: 66309 diff changeset	784 if self.stderr:
e02021fbfe22 Fix #10554. Added context manager support to Popen objects. Brian Curtin <brian.curtin@gmail.com> parents: 66309 diff changeset	785 self.stderr.close()
e02021fbfe22 Fix #10554. Added context manager support to Popen objects. Brian Curtin <brian.curtin@gmail.com> parents: 66309 diff changeset	786 if self.stdin:
e02021fbfe22 Fix #10554. Added context manager support to Popen objects. Brian Curtin <brian.curtin@gmail.com> parents: 66309 diff changeset	787 self.stdin.close()
70049 b00a64a5cb93 merge - 7a3f3ad83676 Fixes Issue #12044. Gregory P. Smith <greg@krypto.org> parents: 69690 diff changeset	788 # Wait for the process to terminate, to avoid zombies.
b00a64a5cb93 merge - 7a3f3ad83676 Fixes Issue #12044. Gregory P. Smith <greg@krypto.org> parents: 69690 diff changeset	789 self.wait()
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 37048 diff changeset	790
61569 58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	791 def __del__(self, _maxsize=sys.maxsize, _active=_active):
70554 0f2714e49583 Close #12085: Fix an attribute error in subprocess.Popen destructor if the Victor Stinner <victor.stinner@haypocalc.com> parents: 70050 diff changeset	792 # If __init__ hasn't had a chance to execute (e.g. if it
0f2714e49583 Close #12085: Fix an attribute error in subprocess.Popen destructor if the Victor Stinner <victor.stinner@haypocalc.com> parents: 70050 diff changeset	793 # was passed an undeclared keyword argument), we don't
0f2714e49583 Close #12085: Fix an attribute error in subprocess.Popen destructor if the Victor Stinner <victor.stinner@haypocalc.com> parents: 70050 diff changeset	794 # have a _child_created attribute at all.
0f2714e49583 Close #12085: Fix an attribute error in subprocess.Popen destructor if the Victor Stinner <victor.stinner@haypocalc.com> parents: 70050 diff changeset	795 if not getattr(self, '_child_created', False):
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 37048 diff changeset	796 # We didn't get to successfully create a child process.
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 37048 diff changeset	797 return
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 37048 diff changeset	798 # In case the child hasn't been waited on, check if it's done.
61569 58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	799 self._internal_poll(_deadstate=_maxsize)
39442 654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38673 diff changeset	800 if self.returncode is None and _active is not None:
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 37048 diff changeset	801 # Child is still running, keep us alive until we can wait on it.
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 37048 diff changeset	802 _active.append(self)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 37048 diff changeset	803
68600 eaf93e156dff Issue #5870: Add subprocess.DEVNULL constant. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68587 diff changeset	804 def _get_devnull(self):
eaf93e156dff Issue #5870: Add subprocess.DEVNULL constant. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68587 diff changeset	805 if not hasattr(self, '_devnull'):
eaf93e156dff Issue #5870: Add subprocess.DEVNULL constant. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68587 diff changeset	806 self._devnull = os.open(os.devnull, os.O_RDWR)
eaf93e156dff Issue #5870: Add subprocess.DEVNULL constant. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68587 diff changeset	807 return self._devnull
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 37048 diff changeset	808
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	809 def communicate(self, input=None, timeout=None):
34672 085bc27f92b7 Optimization for communicate(): If only one of stdin/stdout/stderr is Peter Astrand <astrand@lysator.liu.se> parents: 34624 diff changeset	810 """Interact with process: Send data to stdin. Read data from
085bc27f92b7 Optimization for communicate(): If only one of stdin/stdout/stderr is Peter Astrand <astrand@lysator.liu.se> parents: 34624 diff changeset	811 stdout and stderr, until end-of-file is reached. Wait for
70289 6354b4ceba1d Update documentation to mention bytes instead byte string and correct one Gregory P. Smith <greg@krypto.org> parents: 70052 diff changeset	812 process to terminate. The optional input argument should be
6354b4ceba1d Update documentation to mention bytes instead byte string and correct one Gregory P. Smith <greg@krypto.org> parents: 70052 diff changeset	813 bytes to be sent to the child process, or None, if no data
34672 085bc27f92b7 Optimization for communicate(): If only one of stdin/stdout/stderr is Peter Astrand <astrand@lysator.liu.se> parents: 34624 diff changeset	814 should be sent to the child.
34818 4eaab38566c9 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 34675 diff changeset	815
34672 085bc27f92b7 Optimization for communicate(): If only one of stdin/stdout/stderr is Peter Astrand <astrand@lysator.liu.se> parents: 34624 diff changeset	816 communicate() returns a tuple (stdout, stderr)."""
085bc27f92b7 Optimization for communicate(): If only one of stdin/stdout/stderr is Peter Astrand <astrand@lysator.liu.se> parents: 34624 diff changeset	817
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	818 if self._communication_started and input:
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	819 raise ValueError("Cannot send input after starting communication")
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	820
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	821 # Optimization: If we are not worried about timeouts, we haven't
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	822 # started communicating, and we have one or zero pipes, using select()
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	823 # or threads is unnecessary.
69152 3664fc29e867 Issue #11757: subprocess ensures that select() and poll() timeout >= 0 Victor Stinner <victor.stinner@haypocalc.com> parents: 69011 diff changeset	824 if (timeout is None and not self._communication_started and
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	825 [self.stdin, self.stdout, self.stderr].count(None) >= 2):
34818 4eaab38566c9 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 34675 diff changeset	826 stdout = None
4eaab38566c9 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 34675 diff changeset	827 stderr = None
34672 085bc27f92b7 Optimization for communicate(): If only one of stdin/stdout/stderr is Peter Astrand <astrand@lysator.liu.se> parents: 34624 diff changeset	828 if self.stdin:
085bc27f92b7 Optimization for communicate(): If only one of stdin/stdout/stderr is Peter Astrand <astrand@lysator.liu.se> parents: 34624 diff changeset	829 if input:
69154 158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	830 try:
158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	831 self.stdin.write(input)
158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	832 except IOError as e:
158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	833 if e.errno != errno.EPIPE and e.errno != errno.EINVAL:
158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	834 raise
34672 085bc27f92b7 Optimization for communicate(): If only one of stdin/stdout/stderr is Peter Astrand <astrand@lysator.liu.se> parents: 34624 diff changeset	835 self.stdin.close()
085bc27f92b7 Optimization for communicate(): If only one of stdin/stdout/stderr is Peter Astrand <astrand@lysator.liu.se> parents: 34624 diff changeset	836 elif self.stdout:
71228 dcfacc2d93b4 Issue #12493: subprocess: communicate() handles EINTR Victor Stinner <victor.stinner@haypocalc.com> parents: 70921 diff changeset	837 stdout = _eintr_retry_call(self.stdout.read)
47557 98827a21e352 Merged revisions 63724,63726,63732,63744,63754-63755,63757-63758,63760,63775,63781-63782,63787,63805-63808,63818-63819,63823-63824 via svnmerge from Georg Brandl <georg@python.org> parents: 47331 diff changeset	838 self.stdout.close()
34672 085bc27f92b7 Optimization for communicate(): If only one of stdin/stdout/stderr is Peter Astrand <astrand@lysator.liu.se> parents: 34624 diff changeset	839 elif self.stderr:
71228 dcfacc2d93b4 Issue #12493: subprocess: communicate() handles EINTR Victor Stinner <victor.stinner@haypocalc.com> parents: 70921 diff changeset	840 stderr = _eintr_retry_call(self.stderr.read)
47557 98827a21e352 Merged revisions 63724,63726,63732,63744,63754-63755,63757-63758,63760,63775,63781-63782,63787,63805-63808,63818-63819,63823-63824 via svnmerge from Georg Brandl <georg@python.org> parents: 47331 diff changeset	841 self.stderr.close()
34672 085bc27f92b7 Optimization for communicate(): If only one of stdin/stdout/stderr is Peter Astrand <astrand@lysator.liu.se> parents: 34624 diff changeset	842 self.wait()
69152 3664fc29e867 Issue #11757: subprocess ensures that select() and poll() timeout >= 0 Victor Stinner <victor.stinner@haypocalc.com> parents: 69011 diff changeset	843 else:
3664fc29e867 Issue #11757: subprocess ensures that select() and poll() timeout >= 0 Victor Stinner <victor.stinner@haypocalc.com> parents: 69011 diff changeset	844 if timeout is not None:
3664fc29e867 Issue #11757: subprocess ensures that select() and poll() timeout >= 0 Victor Stinner <victor.stinner@haypocalc.com> parents: 69011 diff changeset	845 endtime = time.time() + timeout
3664fc29e867 Issue #11757: subprocess ensures that select() and poll() timeout >= 0 Victor Stinner <victor.stinner@haypocalc.com> parents: 69011 diff changeset	846 else:
3664fc29e867 Issue #11757: subprocess ensures that select() and poll() timeout >= 0 Victor Stinner <victor.stinner@haypocalc.com> parents: 69011 diff changeset	847 endtime = None
34818 4eaab38566c9 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 34675 diff changeset	848
69152 3664fc29e867 Issue #11757: subprocess ensures that select() and poll() timeout >= 0 Victor Stinner <victor.stinner@haypocalc.com> parents: 69011 diff changeset	849 try:
3664fc29e867 Issue #11757: subprocess ensures that select() and poll() timeout >= 0 Victor Stinner <victor.stinner@haypocalc.com> parents: 69011 diff changeset	850 stdout, stderr = self._communicate(input, endtime, timeout)
3664fc29e867 Issue #11757: subprocess ensures that select() and poll() timeout >= 0 Victor Stinner <victor.stinner@haypocalc.com> parents: 69011 diff changeset	851 finally:
3664fc29e867 Issue #11757: subprocess ensures that select() and poll() timeout >= 0 Victor Stinner <victor.stinner@haypocalc.com> parents: 69011 diff changeset	852 self._communication_started = True
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	853
69152 3664fc29e867 Issue #11757: subprocess ensures that select() and poll() timeout >= 0 Victor Stinner <victor.stinner@haypocalc.com> parents: 69011 diff changeset	854 sts = self.wait(timeout=self._remaining_time(endtime))
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	855
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	856 return (stdout, stderr)
34672 085bc27f92b7 Optimization for communicate(): If only one of stdin/stdout/stderr is Peter Astrand <astrand@lysator.liu.se> parents: 34624 diff changeset	857
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	858
48680 7779af388aec Merged revisions 65459,65472,65481,65518,65536,65581,65609,65637,65641,65644-65645 via svnmerge from Georg Brandl <georg@python.org> parents: 48494 diff changeset	859 def poll(self):
7779af388aec Merged revisions 65459,65472,65481,65518,65536,65581,65609,65637,65641,65644-65645 via svnmerge from Georg Brandl <georg@python.org> parents: 48494 diff changeset	860 return self._internal_poll()
7779af388aec Merged revisions 65459,65472,65481,65518,65536,65581,65609,65637,65641,65644-65645 via svnmerge from Georg Brandl <georg@python.org> parents: 48494 diff changeset	861
7779af388aec Merged revisions 65459,65472,65481,65518,65536,65581,65609,65637,65641,65644-65645 via svnmerge from Georg Brandl <georg@python.org> parents: 48494 diff changeset	862
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	863 def _remaining_time(self, endtime):
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	864 """Convenience for _communicate when computing timeouts."""
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	865 if endtime is None:
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	866 return None
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	867 else:
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	868 return endtime - time.time()
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	869
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	870
68618 a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	871 def _check_timeout(self, endtime, orig_timeout):
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	872 """Convenience for checking if a timeout has expired."""
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	873 if endtime is None:
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	874 return
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	875 if time.time() > endtime:
68618 a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	876 raise TimeoutExpired(self.args, orig_timeout)
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	877
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	878
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	879 if mswindows:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	880 #
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	881 # Windows methods
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	882 #
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	883 def _get_handles(self, stdin, stdout, stderr):
55617 a267c604465f Recorded merge of revisions 74057 via svnmerge from Georg Brandl <georg@python.org> parents: 55602 diff changeset	884 """Construct and return tuple with IO objects:
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	885 p2cread, p2cwrite, c2pread, c2pwrite, errread, errwrite
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	886 """
34575 4545a154fac1 Patch from Leandro Lucarella: replaced: Peter Astrand <astrand@lysator.liu.se> parents: 34551 diff changeset	887 if stdin is None and stdout is None and stderr is None:
59605 768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	888 return (-1, -1, -1, -1, -1, -1)
33731 53c468d0955b Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 33727 diff changeset	889
59605 768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	890 p2cread, p2cwrite = -1, -1
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	891 c2pread, c2pwrite = -1, -1
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	892 errread, errwrite = -1, -1
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	893
34575 4545a154fac1 Patch from Leandro Lucarella: replaced: Peter Astrand <astrand@lysator.liu.se> parents: 34551 diff changeset	894 if stdin is None:
60923 91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	895 p2cread = _subprocess.GetStdHandle(_subprocess.STD_INPUT_HANDLE)
51981 d77172eb6fe7 Merged revisions 70137 via svnmerge from Hirokazu Yamamoto <ocean-city@m2.ccsnet.ne.jp> parents: 51776 diff changeset	896 if p2cread is None:
60923 91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	897 p2cread, _ = _subprocess.CreatePipe(None, 0)
51981 d77172eb6fe7 Merged revisions 70137 via svnmerge from Hirokazu Yamamoto <ocean-city@m2.ccsnet.ne.jp> parents: 51776 diff changeset	898 elif stdin == PIPE:
60923 91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	899 p2cread, p2cwrite = _subprocess.CreatePipe(None, 0)
68600 eaf93e156dff Issue #5870: Add subprocess.DEVNULL constant. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68587 diff changeset	900 elif stdin == DEVNULL:
eaf93e156dff Issue #5870: Add subprocess.DEVNULL constant. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68587 diff changeset	901 p2cread = msvcrt.get_osfhandle(self._get_devnull())
34575 4545a154fac1 Patch from Leandro Lucarella: replaced: Peter Astrand <astrand@lysator.liu.se> parents: 34551 diff changeset	902 elif isinstance(stdin, int):
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	903 p2cread = msvcrt.get_osfhandle(stdin)
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	904 else:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	905 # Assuming file-like object
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	906 p2cread = msvcrt.get_osfhandle(stdin.fileno())
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	907 p2cread = self._make_inheritable(p2cread)
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	908
34575 4545a154fac1 Patch from Leandro Lucarella: replaced: Peter Astrand <astrand@lysator.liu.se> parents: 34551 diff changeset	909 if stdout is None:
60923 91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	910 c2pwrite = _subprocess.GetStdHandle(_subprocess.STD_OUTPUT_HANDLE)
51981 d77172eb6fe7 Merged revisions 70137 via svnmerge from Hirokazu Yamamoto <ocean-city@m2.ccsnet.ne.jp> parents: 51776 diff changeset	911 if c2pwrite is None:
60923 91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	912 _, c2pwrite = _subprocess.CreatePipe(None, 0)
51981 d77172eb6fe7 Merged revisions 70137 via svnmerge from Hirokazu Yamamoto <ocean-city@m2.ccsnet.ne.jp> parents: 51776 diff changeset	913 elif stdout == PIPE:
60923 91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	914 c2pread, c2pwrite = _subprocess.CreatePipe(None, 0)
68600 eaf93e156dff Issue #5870: Add subprocess.DEVNULL constant. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68587 diff changeset	915 elif stdout == DEVNULL:
eaf93e156dff Issue #5870: Add subprocess.DEVNULL constant. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68587 diff changeset	916 c2pwrite = msvcrt.get_osfhandle(self._get_devnull())
34575 4545a154fac1 Patch from Leandro Lucarella: replaced: Peter Astrand <astrand@lysator.liu.se> parents: 34551 diff changeset	917 elif isinstance(stdout, int):
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	918 c2pwrite = msvcrt.get_osfhandle(stdout)
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	919 else:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	920 # Assuming file-like object
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	921 c2pwrite = msvcrt.get_osfhandle(stdout.fileno())
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	922 c2pwrite = self._make_inheritable(c2pwrite)
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	923
34575 4545a154fac1 Patch from Leandro Lucarella: replaced: Peter Astrand <astrand@lysator.liu.se> parents: 34551 diff changeset	924 if stderr is None:
60923 91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	925 errwrite = _subprocess.GetStdHandle(_subprocess.STD_ERROR_HANDLE)
51981 d77172eb6fe7 Merged revisions 70137 via svnmerge from Hirokazu Yamamoto <ocean-city@m2.ccsnet.ne.jp> parents: 51776 diff changeset	926 if errwrite is None:
60923 91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	927 _, errwrite = _subprocess.CreatePipe(None, 0)
51981 d77172eb6fe7 Merged revisions 70137 via svnmerge from Hirokazu Yamamoto <ocean-city@m2.ccsnet.ne.jp> parents: 51776 diff changeset	928 elif stderr == PIPE:
60923 91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	929 errread, errwrite = _subprocess.CreatePipe(None, 0)
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	930 elif stderr == STDOUT:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	931 errwrite = c2pwrite
68600 eaf93e156dff Issue #5870: Add subprocess.DEVNULL constant. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68587 diff changeset	932 elif stderr == DEVNULL:
eaf93e156dff Issue #5870: Add subprocess.DEVNULL constant. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68587 diff changeset	933 errwrite = msvcrt.get_osfhandle(self._get_devnull())
34575 4545a154fac1 Patch from Leandro Lucarella: replaced: Peter Astrand <astrand@lysator.liu.se> parents: 34551 diff changeset	934 elif isinstance(stderr, int):
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	935 errwrite = msvcrt.get_osfhandle(stderr)
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	936 else:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	937 # Assuming file-like object
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	938 errwrite = msvcrt.get_osfhandle(stderr.fileno())
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	939 errwrite = self._make_inheritable(errwrite)
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	940
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	941 return (p2cread, p2cwrite,
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	942 c2pread, c2pwrite,
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	943 errread, errwrite)
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	944
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	945
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	946 def _make_inheritable(self, handle):
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	947 """Return a duplicate of handle, which is inheritable"""
60923 91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	948 return _subprocess.DuplicateHandle(_subprocess.GetCurrentProcess(),
91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	949 handle, _subprocess.GetCurrentProcess(), 0, 1,
91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	950 _subprocess.DUPLICATE_SAME_ACCESS)
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	951
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	952
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	953 def _find_w9xpopen(self):
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	954 """Find and return absolut path to w9xpopen.exe"""
60923 91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	955 w9xpopen = os.path.join(
91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	956 os.path.dirname(_subprocess.GetModuleFileName(0)),
33735 1383c4692af7 Folded long lines. Tim Peters <tim.peters@gmail.com> parents: 33731 diff changeset	957 "w9xpopen.exe")
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	958 if not os.path.exists(w9xpopen):
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	959 # Eeek - file-not-found - possibly an embedding
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	960 # situation - see if we can locate it in sys.exec_prefix
33735 1383c4692af7 Folded long lines. Tim Peters <tim.peters@gmail.com> parents: 33731 diff changeset	961 w9xpopen = os.path.join(os.path.dirname(sys.exec_prefix),
1383c4692af7 Folded long lines. Tim Peters <tim.peters@gmail.com> parents: 33731 diff changeset	962 "w9xpopen.exe")
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	963 if not os.path.exists(w9xpopen):
33735 1383c4692af7 Folded long lines. Tim Peters <tim.peters@gmail.com> parents: 33731 diff changeset	964 raise RuntimeError("Cannot locate w9xpopen.exe, which is "
1383c4692af7 Folded long lines. Tim Peters <tim.peters@gmail.com> parents: 33731 diff changeset	965 "needed for Popen to work with your "
1383c4692af7 Folded long lines. Tim Peters <tim.peters@gmail.com> parents: 33731 diff changeset	966 "shell or platform.")
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	967 return w9xpopen
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	968
33731 53c468d0955b Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 33727 diff changeset	969
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	970 def _execute_child(self, args, executable, preexec_fn, close_fds,
66692 296e6f85f56d issue6559: Adds a pass_fds parameter to subprocess.Popen that allows the caller Gregory P. Smith <greg@mad-scientist.com> parents: 66676 diff changeset	971 pass_fds, cwd, env, universal_newlines,
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	972 startupinfo, creationflags, shell,
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	973 p2cread, p2cwrite,
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	974 c2pread, c2pwrite,
59605 768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	975 errread, errwrite,
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	976 unused_restore_signals, unused_start_new_session):
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	977 """Execute program (MS Windows version)"""
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	978
66889 59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	979 assert not pass_fds, "pass_fds not supported on Windows."
66692 296e6f85f56d issue6559: Adds a pass_fds parameter to subprocess.Popen that allows the caller Gregory P. Smith <greg@mad-scientist.com> parents: 66676 diff changeset	980
43577 ace45b361e87 Patch# 1258 by Christian Heimes: kill basestring. Guido van Rossum <guido@python.org> parents: 43487 diff changeset	981 if not isinstance(args, str):
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	982 args = list2cmdline(args)
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	983
33929 66223a9ebe48 When using shell=True on Windows, don't display a shell window by default. Fixes #1057061. Peter Astrand <astrand@lysator.liu.se> parents: 33776 diff changeset	984 # Process startup details
34575 4545a154fac1 Patch from Leandro Lucarella: replaced: Peter Astrand <astrand@lysator.liu.se> parents: 34551 diff changeset	985 if startupinfo is None:
38673 a19c20c5e5c7 Merge the rest of the trunk. Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	986 startupinfo = STARTUPINFO()
61793 441491572fce Issue #8780: Fix a regression introduced by r78946 in subprocess on Windows Victor Stinner <victor.stinner@haypocalc.com> parents: 61693 diff changeset	987 if -1 not in (p2cread, c2pwrite, errwrite):
60923 91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	988 startupinfo.dwFlags \|= _subprocess.STARTF_USESTDHANDLES
33929 66223a9ebe48 When using shell=True on Windows, don't display a shell window by default. Fixes #1057061. Peter Astrand <astrand@lysator.liu.se> parents: 33776 diff changeset	989 startupinfo.hStdInput = p2cread
66223a9ebe48 When using shell=True on Windows, don't display a shell window by default. Fixes #1057061. Peter Astrand <astrand@lysator.liu.se> parents: 33776 diff changeset	990 startupinfo.hStdOutput = c2pwrite
66223a9ebe48 When using shell=True on Windows, don't display a shell window by default. Fixes #1057061. Peter Astrand <astrand@lysator.liu.se> parents: 33776 diff changeset	991 startupinfo.hStdError = errwrite
66223a9ebe48 When using shell=True on Windows, don't display a shell window by default. Fixes #1057061. Peter Astrand <astrand@lysator.liu.se> parents: 33776 diff changeset	992
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	993 if shell:
60923 91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	994 startupinfo.dwFlags \|= _subprocess.STARTF_USESHOWWINDOW
91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	995 startupinfo.wShowWindow = _subprocess.SW_HIDE
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	996 comspec = os.environ.get("COMSPEC", "cmd.exe")
63930 8499ae5d9719 #2304: fix incorporating Eric Smith's .format suggestion and tested on Ubuntu as well as Windows Tim Golden <mail@timgolden.me.uk> parents: 63843 diff changeset	997 args = '{} /c "{}"'.format (comspec, args)
60923 91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	998 if (_subprocess.GetVersion() >= 0x80000000 or
33735 1383c4692af7 Folded long lines. Tim Peters <tim.peters@gmail.com> parents: 33731 diff changeset	999 os.path.basename(comspec).lower() == "command.com"):
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1000 # Win9x, or using command.com on NT. We need to
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1001 # use the w9xpopen intermediate program. For more
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1002 # information, see KB Q150956
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1003 # (http://web.archive.org/web/20011105084002/http://support.microsoft.com/support/kb/articles/Q150/9/56.asp)
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1004 w9xpopen = self._find_w9xpopen()
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1005 args = '"%s" %s' % (w9xpopen, args)
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1006 # Not passing CREATE_NEW_CONSOLE has been known to
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1007 # cause random failures on win9x. Specifically a
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1008 # dialog: "Your program accessed mem currently in
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1009 # use at xxx" and a hopeful warning about the
51776 d06a3ebf306f Merged revisions 69846 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 51721 diff changeset	1010 # stability of your system. Cost is Ctrl+C won't
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1011 # kill children.
60923 91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	1012 creationflags \|= _subprocess.CREATE_NEW_CONSOLE
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1013
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1014 # Start the process
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1015 try:
60923 91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	1016 hp, ht, pid, tid = _subprocess.CreateProcess(executable, args,
33735 1383c4692af7 Folded long lines. Tim Peters <tim.peters@gmail.com> parents: 33731 diff changeset	1017 # no special security
1383c4692af7 Folded long lines. Tim Peters <tim.peters@gmail.com> parents: 33731 diff changeset	1018 None, None,
41969 9d02a4adf574 Merged revisions 55631-55794 via svnmerge from Guido van Rossum <guido@python.org> parents: 41845 diff changeset	1019 int(not close_fds),
33735 1383c4692af7 Folded long lines. Tim Peters <tim.peters@gmail.com> parents: 33731 diff changeset	1020 creationflags,
1383c4692af7 Folded long lines. Tim Peters <tim.peters@gmail.com> parents: 33731 diff changeset	1021 env,
1383c4692af7 Folded long lines. Tim Peters <tim.peters@gmail.com> parents: 33731 diff changeset	1022 cwd,
1383c4692af7 Folded long lines. Tim Peters <tim.peters@gmail.com> parents: 33731 diff changeset	1023 startupinfo)
40587 6b18a095c2e7 SF patch 1631942 by Collin Winter: Guido van Rossum <guido@python.org> parents: 40582 diff changeset	1024 except pywintypes.error as e:
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1025 # Translate pywintypes.error to WindowsError, which is
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1026 # a subclass of OSError. FIXME: We should really
68585 bf94b6a73fc8 #11565: Fix several typos. Patch by Piotr Kasprzyk. Ezio Melotti <ezio.melotti@gmail.com> parents: 67311 diff changeset	1027 # translate errno using _sys_errlist (or similar), but
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1028 # how can this be done from Python?
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1029 raise WindowsError(*e.args)
63816 f4d92c6d4d42 Issue #3210: Revert C module changes and apply patch from Hirokazu Yamamoto instead Tim Golden <mail@timgolden.me.uk> parents: 63095 diff changeset	1030 finally:
f4d92c6d4d42 Issue #3210: Revert C module changes and apply patch from Hirokazu Yamamoto instead Tim Golden <mail@timgolden.me.uk> parents: 63095 diff changeset	1031 # Child is launched. Close the parent's copy of those pipe
f4d92c6d4d42 Issue #3210: Revert C module changes and apply patch from Hirokazu Yamamoto instead Tim Golden <mail@timgolden.me.uk> parents: 63095 diff changeset	1032 # handles that only the child should have open. You need
f4d92c6d4d42 Issue #3210: Revert C module changes and apply patch from Hirokazu Yamamoto instead Tim Golden <mail@timgolden.me.uk> parents: 63095 diff changeset	1033 # to make sure that no handles to the write end of the
f4d92c6d4d42 Issue #3210: Revert C module changes and apply patch from Hirokazu Yamamoto instead Tim Golden <mail@timgolden.me.uk> parents: 63095 diff changeset	1034 # output pipe are maintained in this process or else the
f4d92c6d4d42 Issue #3210: Revert C module changes and apply patch from Hirokazu Yamamoto instead Tim Golden <mail@timgolden.me.uk> parents: 63095 diff changeset	1035 # pipe will not close when the child process exits and the
f4d92c6d4d42 Issue #3210: Revert C module changes and apply patch from Hirokazu Yamamoto instead Tim Golden <mail@timgolden.me.uk> parents: 63095 diff changeset	1036 # ReadFile will hang.
63815 e41ca6672f82 Issue #3210: Revert C module changes and apply patch from Hirokazu Yamamoto instead Tim Golden <mail@timgolden.me.uk> parents: 63094 diff changeset	1037 if p2cread != -1:
63816 f4d92c6d4d42 Issue #3210: Revert C module changes and apply patch from Hirokazu Yamamoto instead Tim Golden <mail@timgolden.me.uk> parents: 63095 diff changeset	1038 p2cread.Close()
63815 e41ca6672f82 Issue #3210: Revert C module changes and apply patch from Hirokazu Yamamoto instead Tim Golden <mail@timgolden.me.uk> parents: 63094 diff changeset	1039 if c2pwrite != -1:
63816 f4d92c6d4d42 Issue #3210: Revert C module changes and apply patch from Hirokazu Yamamoto instead Tim Golden <mail@timgolden.me.uk> parents: 63095 diff changeset	1040 c2pwrite.Close()
63815 e41ca6672f82 Issue #3210: Revert C module changes and apply patch from Hirokazu Yamamoto instead Tim Golden <mail@timgolden.me.uk> parents: 63094 diff changeset	1041 if errwrite != -1:
63816 f4d92c6d4d42 Issue #3210: Revert C module changes and apply patch from Hirokazu Yamamoto instead Tim Golden <mail@timgolden.me.uk> parents: 63095 diff changeset	1042 errwrite.Close()
68600 eaf93e156dff Issue #5870: Add subprocess.DEVNULL constant. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68587 diff changeset	1043 if hasattr(self, '_devnull'):
eaf93e156dff Issue #5870: Add subprocess.DEVNULL constant. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68587 diff changeset	1044 os.close(self._devnull)
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1045
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1046 # Retain the process handle, but close the thread handle
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 37048 diff changeset	1047 self._child_created = True
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1048 self._handle = hp
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1049 self.pid = pid
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1050 ht.Close()
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1051
61569 58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1052 def _internal_poll(self, _deadstate=None,
61585 0e37a95cdcfb Merged revisions 81181 via svnmerge from Victor Stinner <victor.stinner@haypocalc.com> parents: 61569 diff changeset	1053 _WaitForSingleObject=_subprocess.WaitForSingleObject,
0e37a95cdcfb Merged revisions 81181 via svnmerge from Victor Stinner <victor.stinner@haypocalc.com> parents: 61569 diff changeset	1054 _WAIT_OBJECT_0=_subprocess.WAIT_OBJECT_0,
0e37a95cdcfb Merged revisions 81181 via svnmerge from Victor Stinner <victor.stinner@haypocalc.com> parents: 61569 diff changeset	1055 _GetExitCodeProcess=_subprocess.GetExitCodeProcess):
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1056 """Check if child process has terminated. Returns returncode
61569 58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1057 attribute.
58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1058
58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1059 This method is called by __del__, so it can only refer to objects
58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1060 in its local scope.
58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1061
58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1062 """
34575 4545a154fac1 Patch from Leandro Lucarella: replaced: Peter Astrand <astrand@lysator.liu.se> parents: 34551 diff changeset	1063 if self.returncode is None:
61569 58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1064 if _WaitForSingleObject(self._handle, 0) == _WAIT_OBJECT_0:
58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1065 self.returncode = _GetExitCodeProcess(self._handle)
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1066 return self.returncode
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1067
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1068
68618 a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	1069 def wait(self, timeout=None, endtime=None):
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1070 """Wait for child process to terminate. Returns returncode
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1071 attribute."""
68618 a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	1072 if endtime is not None:
a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	1073 timeout = self._remaining_time(endtime)
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1074 if timeout is None:
68807 ab2363f89058 Fix timeout error message on windows to not be in milliseconds. Reid Kleckner <reid@kleckner.net> parents: 68750 diff changeset	1075 timeout_millis = _subprocess.INFINITE
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1076 else:
68807 ab2363f89058 Fix timeout error message on windows to not be in milliseconds. Reid Kleckner <reid@kleckner.net> parents: 68750 diff changeset	1077 timeout_millis = int(timeout * 1000)
34575 4545a154fac1 Patch from Leandro Lucarella: replaced: Peter Astrand <astrand@lysator.liu.se> parents: 34551 diff changeset	1078 if self.returncode is None:
68807 ab2363f89058 Fix timeout error message on windows to not be in milliseconds. Reid Kleckner <reid@kleckner.net> parents: 68750 diff changeset	1079 result = _subprocess.WaitForSingleObject(self._handle,
ab2363f89058 Fix timeout error message on windows to not be in milliseconds. Reid Kleckner <reid@kleckner.net> parents: 68750 diff changeset	1080 timeout_millis)
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1081 if result == _subprocess.WAIT_TIMEOUT:
68618 a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	1082 raise TimeoutExpired(self.args, timeout)
60923 91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	1083 self.returncode = _subprocess.GetExitCodeProcess(self._handle)
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1084 return self.returncode
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1085
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1086
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1087 def _readerthread(self, fh, buffer):
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1088 buffer.append(fh.read())
67130 38d66980187e Issue #10763: subprocess.communicate() closes stdout and stderr if both are Victor Stinner <victor.stinner@haypocalc.com> parents: 66893 diff changeset	1089 fh.close()
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1090
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1091
68618 a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	1092 def _communicate(self, input, endtime, orig_timeout):
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1093 # Start reader threads feeding into a list hanging off of this
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1094 # object, unless they've already been started.
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1095 if self.stdout and not hasattr(self, "_stdout_buff"):
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1096 self._stdout_buff = []
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1097 self.stdout_thread = \
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1098 threading.Thread(target=self._readerthread,
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1099 args=(self.stdout, self._stdout_buff))
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1100 self.stdout_thread.daemon = True
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1101 self.stdout_thread.start()
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1102 if self.stderr and not hasattr(self, "_stderr_buff"):
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1103 self._stderr_buff = []
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1104 self.stderr_thread = \
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1105 threading.Thread(target=self._readerthread,
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1106 args=(self.stderr, self._stderr_buff))
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1107 self.stderr_thread.daemon = True
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1108 self.stderr_thread.start()
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1109
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1110 if self.stdin:
34575 4545a154fac1 Patch from Leandro Lucarella: replaced: Peter Astrand <astrand@lysator.liu.se> parents: 34551 diff changeset	1111 if input is not None:
69154 158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	1112 try:
158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	1113 self.stdin.write(input)
158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	1114 except IOError as e:
158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	1115 if e.errno != errno.EPIPE:
158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	1116 raise
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1117 self.stdin.close()
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1118
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1119 # Wait for the reader threads, or time out. If we time out, the
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1120 # threads remain reading and the fds left open in case the user
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1121 # calls communicate again.
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1122 if self.stdout is not None:
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1123 self.stdout_thread.join(self._remaining_time(endtime))
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1124 if self.stdout_thread.isAlive():
68750 6017c431ff0d Fix the Windows timeout code. Reid Kleckner <reid@kleckner.net> parents: 68681 diff changeset	1125 raise TimeoutExpired(self.args, orig_timeout)
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1126 if self.stderr is not None:
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1127 self.stderr_thread.join(self._remaining_time(endtime))
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1128 if self.stderr_thread.isAlive():
68750 6017c431ff0d Fix the Windows timeout code. Reid Kleckner <reid@kleckner.net> parents: 68681 diff changeset	1129 raise TimeoutExpired(self.args, orig_timeout)
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1130
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1131 # Collect the output from and close both pipes, now that we know
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1132 # both have been read successfully.
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1133 stdout = None
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1134 stderr = None
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1135 if self.stdout:
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1136 stdout = self._stdout_buff
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1137 self.stdout.close()
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1138 if self.stderr:
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1139 stderr = self._stderr_buff
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1140 self.stderr.close()
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1141
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1142 # All data exchanged. Translate lists into strings.
34575 4545a154fac1 Patch from Leandro Lucarella: replaced: Peter Astrand <astrand@lysator.liu.se> parents: 34551 diff changeset	1143 if stdout is not None:
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1144 stdout = stdout[0]
34575 4545a154fac1 Patch from Leandro Lucarella: replaced: Peter Astrand <astrand@lysator.liu.se> parents: 34551 diff changeset	1145 if stderr is not None:
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1146 stderr = stderr[0]
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1147
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1148 return (stdout, stderr)
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1149
46505 63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	1150 def send_signal(self, sig):
63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	1151 """Send a signal to the process
63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	1152 """
63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	1153 if sig == signal.SIGTERM:
63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	1154 self.terminate()
60556 a2f5b3b19eb2 Port #1220212 (os.kill for Win32) to py3k. Brian Curtin <brian.curtin@gmail.com> parents: 59619 diff changeset	1155 elif sig == signal.CTRL_C_EVENT:
a2f5b3b19eb2 Port #1220212 (os.kill for Win32) to py3k. Brian Curtin <brian.curtin@gmail.com> parents: 59619 diff changeset	1156 os.kill(self.pid, signal.CTRL_C_EVENT)
a2f5b3b19eb2 Port #1220212 (os.kill for Win32) to py3k. Brian Curtin <brian.curtin@gmail.com> parents: 59619 diff changeset	1157 elif sig == signal.CTRL_BREAK_EVENT:
a2f5b3b19eb2 Port #1220212 (os.kill for Win32) to py3k. Brian Curtin <brian.curtin@gmail.com> parents: 59619 diff changeset	1158 os.kill(self.pid, signal.CTRL_BREAK_EVENT)
46505 63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	1159 else:
64518 1a1e7254d965 Adjust #8956 to add the bad signal number to the exception message. Brian Curtin <brian.curtin@gmail.com> parents: 64493 diff changeset	1160 raise ValueError("Unsupported signal: {}".format(sig))
46505 63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	1161
63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	1162 def terminate(self):
63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	1163 """Terminates the process
63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	1164 """
60923 91f9168aadd0 Merged revisions 80441 via svnmerge from Brian Curtin <brian.curtin@gmail.com> parents: 59209 diff changeset	1165 _subprocess.TerminateProcess(self._handle, 1)
46505 63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	1166
63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	1167 kill = terminate
63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	1168
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1169 else:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1170 #
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1171 # POSIX methods
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1172 #
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1173 def _get_handles(self, stdin, stdout, stderr):
55617 a267c604465f Recorded merge of revisions 74057 via svnmerge from Georg Brandl <georg@python.org> parents: 55602 diff changeset	1174 """Construct and return tuple with IO objects:
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1175 p2cread, p2cwrite, c2pread, c2pwrite, errread, errwrite
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1176 """
59605 768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1177 p2cread, p2cwrite = -1, -1
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1178 c2pread, c2pwrite = -1, -1
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1179 errread, errwrite = -1, -1
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1180
34575 4545a154fac1 Patch from Leandro Lucarella: replaced: Peter Astrand <astrand@lysator.liu.se> parents: 34551 diff changeset	1181 if stdin is None:
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1182 pass
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1183 elif stdin == PIPE:
66868 de05d846795e issue7213: Open the pipes used by subprocesses with the FD_CLOEXEC flag from Gregory P. Smith <greg@mad-scientist.com> parents: 66867 diff changeset	1184 p2cread, p2cwrite = _create_pipe()
68600 eaf93e156dff Issue #5870: Add subprocess.DEVNULL constant. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68587 diff changeset	1185 elif stdin == DEVNULL:
eaf93e156dff Issue #5870: Add subprocess.DEVNULL constant. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68587 diff changeset	1186 p2cread = self._get_devnull()
34575 4545a154fac1 Patch from Leandro Lucarella: replaced: Peter Astrand <astrand@lysator.liu.se> parents: 34551 diff changeset	1187 elif isinstance(stdin, int):
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1188 p2cread = stdin
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1189 else:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1190 # Assuming file-like object
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1191 p2cread = stdin.fileno()
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1192
34575 4545a154fac1 Patch from Leandro Lucarella: replaced: Peter Astrand <astrand@lysator.liu.se> parents: 34551 diff changeset	1193 if stdout is None:
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1194 pass
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1195 elif stdout == PIPE:
66868 de05d846795e issue7213: Open the pipes used by subprocesses with the FD_CLOEXEC flag from Gregory P. Smith <greg@mad-scientist.com> parents: 66867 diff changeset	1196 c2pread, c2pwrite = _create_pipe()
68600 eaf93e156dff Issue #5870: Add subprocess.DEVNULL constant. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68587 diff changeset	1197 elif stdout == DEVNULL:
eaf93e156dff Issue #5870: Add subprocess.DEVNULL constant. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68587 diff changeset	1198 c2pwrite = self._get_devnull()
34575 4545a154fac1 Patch from Leandro Lucarella: replaced: Peter Astrand <astrand@lysator.liu.se> parents: 34551 diff changeset	1199 elif isinstance(stdout, int):
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1200 c2pwrite = stdout
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1201 else:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1202 # Assuming file-like object
33731 53c468d0955b Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 33727 diff changeset	1203 c2pwrite = stdout.fileno()
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1204
34575 4545a154fac1 Patch from Leandro Lucarella: replaced: Peter Astrand <astrand@lysator.liu.se> parents: 34551 diff changeset	1205 if stderr is None:
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1206 pass
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1207 elif stderr == PIPE:
66868 de05d846795e issue7213: Open the pipes used by subprocesses with the FD_CLOEXEC flag from Gregory P. Smith <greg@mad-scientist.com> parents: 66867 diff changeset	1208 errread, errwrite = _create_pipe()
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1209 elif stderr == STDOUT:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1210 errwrite = c2pwrite
68600 eaf93e156dff Issue #5870: Add subprocess.DEVNULL constant. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68587 diff changeset	1211 elif stderr == DEVNULL:
eaf93e156dff Issue #5870: Add subprocess.DEVNULL constant. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68587 diff changeset	1212 errwrite = self._get_devnull()
34575 4545a154fac1 Patch from Leandro Lucarella: replaced: Peter Astrand <astrand@lysator.liu.se> parents: 34551 diff changeset	1213 elif isinstance(stderr, int):
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1214 errwrite = stderr
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1215 else:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1216 # Assuming file-like object
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1217 errwrite = stderr.fileno()
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1218
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1219 return (p2cread, p2cwrite,
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1220 c2pread, c2pwrite,
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1221 errread, errwrite)
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1222
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1223
67331 9ad896426f79 Un-complicate some code Antoine Pitrou <solipsis@pitrou.net> parents: 67310 diff changeset	1224 def _close_fds(self, fds_to_keep):
66692 296e6f85f56d issue6559: Adds a pass_fds parameter to subprocess.Popen that allows the caller Gregory P. Smith <greg@mad-scientist.com> parents: 66676 diff changeset	1225 start_fd = 3
67331 9ad896426f79 Un-complicate some code Antoine Pitrou <solipsis@pitrou.net> parents: 67310 diff changeset	1226 for fd in sorted(fds_to_keep):
66889 59b43dc34158 Issue #6559: fix the subprocess.Popen pass_fds implementation. Add a unittest. Gregory P. Smith <greg@mad-scientist.com> parents: 66868 diff changeset	1227 if fd >= start_fd:
66692 296e6f85f56d issue6559: Adds a pass_fds parameter to subprocess.Popen that allows the caller Gregory P. Smith <greg@mad-scientist.com> parents: 66676 diff changeset	1228 os.closerange(start_fd, fd)
296e6f85f56d issue6559: Adds a pass_fds parameter to subprocess.Popen that allows the caller Gregory P. Smith <greg@mad-scientist.com> parents: 66676 diff changeset	1229 start_fd = fd + 1
296e6f85f56d issue6559: Adds a pass_fds parameter to subprocess.Popen that allows the caller Gregory P. Smith <greg@mad-scientist.com> parents: 66676 diff changeset	1230 if start_fd <= MAXFD:
296e6f85f56d issue6559: Adds a pass_fds parameter to subprocess.Popen that allows the caller Gregory P. Smith <greg@mad-scientist.com> parents: 66676 diff changeset	1231 os.closerange(start_fd, MAXFD)
33731 53c468d0955b Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 33727 diff changeset	1232
53c468d0955b Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 33727 diff changeset	1233
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1234 def _execute_child(self, args, executable, preexec_fn, close_fds,
66692 296e6f85f56d issue6559: Adds a pass_fds parameter to subprocess.Popen that allows the caller Gregory P. Smith <greg@mad-scientist.com> parents: 66676 diff changeset	1235 pass_fds, cwd, env, universal_newlines,
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1236 startupinfo, creationflags, shell,
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1237 p2cread, p2cwrite,
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1238 c2pread, c2pwrite,
59605 768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1239 errread, errwrite,
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1240 restore_signals, start_new_session):
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1241 """Execute program (POSIX version)"""
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1242
68214 738feec9ced0 Issue #8513: On UNIX, subprocess supports bytes command string. Victor Stinner <victor.stinner@haypocalc.com> parents: 67358 diff changeset	1243 if isinstance(args, (str, bytes)):
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1244 args = [args]
40450 cc992d75d5b3 Four months of trunk changes (including a few releases...) Thomas Wouters <thomas@python.org> parents: 39646 diff changeset	1245 else:
cc992d75d5b3 Four months of trunk changes (including a few releases...) Thomas Wouters <thomas@python.org> parents: 39646 diff changeset	1246 args = list(args)
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1247
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1248 if shell:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1249 args = ["/bin/sh", "-c"] + args
63095 ad66eff9800b Merged revisions 82971 via svnmerge from Stefan Krah <stefan@bytereef.org> parents: 62404 diff changeset	1250 if executable:
ad66eff9800b Merged revisions 82971 via svnmerge from Stefan Krah <stefan@bytereef.org> parents: 62404 diff changeset	1251 args[0] = executable
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1252
34575 4545a154fac1 Patch from Leandro Lucarella: replaced: Peter Astrand <astrand@lysator.liu.se> parents: 34551 diff changeset	1253 if executable is None:
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1254 executable = args[0]
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1255
59605 768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1256 # For transferring possible exec failure from child to parent.
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1257 # Data format: "exception name:hex errno:description"
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1258 # Pickle is not used; it is complex and involves memory allocation.
66868 de05d846795e issue7213: Open the pipes used by subprocesses with the FD_CLOEXEC flag from Gregory P. Smith <greg@mad-scientist.com> parents: 66867 diff changeset	1259 errpipe_read, errpipe_write = _create_pipe()
44810 fa6cee14dcba Merged revisions 60094-60123 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44160 diff changeset	1260 try:
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1261 try:
70467 75ca834df824 The _posixsubprocess module is now required on POSIX. Gregory P. Smith <greg@krypto.org> parents: 70289 diff changeset	1262 # We must avoid complex work that could involve
75ca834df824 The _posixsubprocess module is now required on POSIX. Gregory P. Smith <greg@krypto.org> parents: 70289 diff changeset	1263 # malloc or free in the child process to avoid
75ca834df824 The _posixsubprocess module is now required on POSIX. Gregory P. Smith <greg@krypto.org> parents: 70289 diff changeset	1264 # potential deadlocks, thus we do all this here.
75ca834df824 The _posixsubprocess module is now required on POSIX. Gregory P. Smith <greg@krypto.org> parents: 70289 diff changeset	1265 # and pass it to fork_exec()
71524 1140b32747c9 Issue #12607: In subprocess, fix issue where if stdin, stdout or stderr is Ross Lagerwall <rosslagerwall@gmail.com> parents: 71485 diff changeset	1266
70922 10ecf8576eb2 (merge 3.2) Close #12383: Fix subprocess module with env={}: don't copy the Victor Stinner <victor.stinner@haypocalc.com> parents: 70555 70921 diff changeset	1267 if env is not None:
70467 75ca834df824 The _posixsubprocess module is now required on POSIX. Gregory P. Smith <greg@krypto.org> parents: 70289 diff changeset	1268 env_list = [os.fsencode(k) + b'=' + os.fsencode(v)
75ca834df824 The _posixsubprocess module is now required on POSIX. Gregory P. Smith <greg@krypto.org> parents: 70289 diff changeset	1269 for k, v in env.items()]
75ca834df824 The _posixsubprocess module is now required on POSIX. Gregory P. Smith <greg@krypto.org> parents: 70289 diff changeset	1270 else:
75ca834df824 The _posixsubprocess module is now required on POSIX. Gregory P. Smith <greg@krypto.org> parents: 70289 diff changeset	1271 env_list = None # Use execv instead of execve.
75ca834df824 The _posixsubprocess module is now required on POSIX. Gregory P. Smith <greg@krypto.org> parents: 70289 diff changeset	1272 executable = os.fsencode(executable)
75ca834df824 The _posixsubprocess module is now required on POSIX. Gregory P. Smith <greg@krypto.org> parents: 70289 diff changeset	1273 if os.path.dirname(executable):
75ca834df824 The _posixsubprocess module is now required on POSIX. Gregory P. Smith <greg@krypto.org> parents: 70289 diff changeset	1274 executable_list = (executable,)
75ca834df824 The _posixsubprocess module is now required on POSIX. Gregory P. Smith <greg@krypto.org> parents: 70289 diff changeset	1275 else:
75ca834df824 The _posixsubprocess module is now required on POSIX. Gregory P. Smith <greg@krypto.org> parents: 70289 diff changeset	1276 # This matches the behavior of os._execvpe().
75ca834df824 The _posixsubprocess module is now required on POSIX. Gregory P. Smith <greg@krypto.org> parents: 70289 diff changeset	1277 executable_list = tuple(
75ca834df824 The _posixsubprocess module is now required on POSIX. Gregory P. Smith <greg@krypto.org> parents: 70289 diff changeset	1278 os.path.join(os.fsencode(dir), executable)
75ca834df824 The _posixsubprocess module is now required on POSIX. Gregory P. Smith <greg@krypto.org> parents: 70289 diff changeset	1279 for dir in os.get_exec_path(env))
75ca834df824 The _posixsubprocess module is now required on POSIX. Gregory P. Smith <greg@krypto.org> parents: 70289 diff changeset	1280 fds_to_keep = set(pass_fds)
75ca834df824 The _posixsubprocess module is now required on POSIX. Gregory P. Smith <greg@krypto.org> parents: 70289 diff changeset	1281 fds_to_keep.add(errpipe_write)
75ca834df824 The _posixsubprocess module is now required on POSIX. Gregory P. Smith <greg@krypto.org> parents: 70289 diff changeset	1282 self.pid = _posixsubprocess.fork_exec(
75ca834df824 The _posixsubprocess module is now required on POSIX. Gregory P. Smith <greg@krypto.org> parents: 70289 diff changeset	1283 args, executable_list,
75ca834df824 The _posixsubprocess module is now required on POSIX. Gregory P. Smith <greg@krypto.org> parents: 70289 diff changeset	1284 close_fds, sorted(fds_to_keep), cwd, env_list,
75ca834df824 The _posixsubprocess module is now required on POSIX. Gregory P. Smith <greg@krypto.org> parents: 70289 diff changeset	1285 p2cread, p2cwrite, c2pread, c2pwrite,
75ca834df824 The _posixsubprocess module is now required on POSIX. Gregory P. Smith <greg@krypto.org> parents: 70289 diff changeset	1286 errread, errwrite,
75ca834df824 The _posixsubprocess module is now required on POSIX. Gregory P. Smith <greg@krypto.org> parents: 70289 diff changeset	1287 errpipe_read, errpipe_write,
75ca834df824 The _posixsubprocess module is now required on POSIX. Gregory P. Smith <greg@krypto.org> parents: 70289 diff changeset	1288 restore_signals, start_new_session, preexec_fn)
71904 148d75d106f1 Issue #12650: Fix a race condition where a subprocess.Popen could leak Charles-François Natali <neologix@free.fr> parents: 71525 71903 diff changeset	1289 self._child_created = True
54797 5fafcb32f062 Issue #6274. Fixed a potential FD leak in subprocess.py. Facundo Batista <facundobatista@gmail.com> parents: 51981 diff changeset	1290 finally:
5fafcb32f062 Issue #6274. Fixed a potential FD leak in subprocess.py. Facundo Batista <facundobatista@gmail.com> parents: 51981 diff changeset	1291 # be sure the FD is closed no matter what
5fafcb32f062 Issue #6274. Fixed a potential FD leak in subprocess.py. Facundo Batista <facundobatista@gmail.com> parents: 51981 diff changeset	1292 os.close(errpipe_write)
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1293
59605 768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1294 if p2cread != -1 and p2cwrite != -1:
54797 5fafcb32f062 Issue #6274. Fixed a potential FD leak in subprocess.py. Facundo Batista <facundobatista@gmail.com> parents: 51981 diff changeset	1295 os.close(p2cread)
59605 768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1296 if c2pwrite != -1 and c2pread != -1:
54797 5fafcb32f062 Issue #6274. Fixed a potential FD leak in subprocess.py. Facundo Batista <facundobatista@gmail.com> parents: 51981 diff changeset	1297 os.close(c2pwrite)
59605 768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1298 if errwrite != -1 and errread != -1:
54797 5fafcb32f062 Issue #6274. Fixed a potential FD leak in subprocess.py. Facundo Batista <facundobatista@gmail.com> parents: 51981 diff changeset	1299 os.close(errwrite)
68600 eaf93e156dff Issue #5870: Add subprocess.DEVNULL constant. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68587 diff changeset	1300 if hasattr(self, '_devnull'):
eaf93e156dff Issue #5870: Add subprocess.DEVNULL constant. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68587 diff changeset	1301 os.close(self._devnull)
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1302
54797 5fafcb32f062 Issue #6274. Fixed a potential FD leak in subprocess.py. Facundo Batista <facundobatista@gmail.com> parents: 51981 diff changeset	1303 # Wait for exec to fail or succeed; possibly raising an
59605 768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1304 # exception (limited in size)
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1305 data = bytearray()
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1306 while True:
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1307 part = _eintr_retry_call(os.read, errpipe_read, 50000)
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1308 data += part
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1309 if not part or len(data) > 50000:
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1310 break
54797 5fafcb32f062 Issue #6274. Fixed a potential FD leak in subprocess.py. Facundo Batista <facundobatista@gmail.com> parents: 51981 diff changeset	1311 finally:
5fafcb32f062 Issue #6274. Fixed a potential FD leak in subprocess.py. Facundo Batista <facundobatista@gmail.com> parents: 51981 diff changeset	1312 # be sure the FD is closed no matter what
5fafcb32f062 Issue #6274. Fixed a potential FD leak in subprocess.py. Facundo Batista <facundobatista@gmail.com> parents: 51981 diff changeset	1313 os.close(errpipe_read)
5fafcb32f062 Issue #6274. Fixed a potential FD leak in subprocess.py. Facundo Batista <facundobatista@gmail.com> parents: 51981 diff changeset	1314
41731 78d76435da9a Make test_sys pass. Guido van Rossum <guido@python.org> parents: 41699 diff changeset	1315 if data:
66895 b066bd0b64e7 Merged revisions 87233 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 65109 diff changeset	1316 try:
b066bd0b64e7 Merged revisions 87233 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 65109 diff changeset	1317 _eintr_retry_call(os.waitpid, self.pid, 0)
b066bd0b64e7 Merged revisions 87233 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 65109 diff changeset	1318 except OSError as e:
b066bd0b64e7 Merged revisions 87233 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 65109 diff changeset	1319 if e.errno != errno.ECHILD:
b066bd0b64e7 Merged revisions 87233 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 65109 diff changeset	1320 raise
59605 768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1321 try:
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1322 exception_name, hex_errno, err_msg = data.split(b':', 2)
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1323 except ValueError:
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1324 print('Bad exception data:', repr(data))
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1325 exception_name = b'RuntimeError'
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1326 hex_errno = b'0'
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1327 err_msg = b'Unknown'
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1328 child_exception_type = getattr(
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1329 builtins, exception_name.decode('ascii'),
768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1330 RuntimeError)
51721 33d5d7daa8c7 Merged revisions 69576,69579-69580,69589,69619-69620,69633,69703-69704,69728-69730 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 51657 diff changeset	1331 for fd in (p2cwrite, c2pread, errread):
59605 768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1332 if fd != -1:
51721 33d5d7daa8c7 Merged revisions 69576,69579-69580,69589,69619-69620,69633,69703-69704,69728-69730 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 51657 diff changeset	1333 os.close(fd)
60896 8428eaa2d3ad Issue #8467: Pure Python implementation of subprocess encodes the error message Victor Stinner <victor.stinner@haypocalc.com> parents: 60556 diff changeset	1334 err_msg = err_msg.decode(errors="surrogatepass")
59605 768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1335 if issubclass(child_exception_type, OSError) and hex_errno:
66309 43e50bb923a9 don't shadow globals Benjamin Peterson <benjamin@python.org> parents: 66307 diff changeset	1336 errno_num = int(hex_errno, 16)
43e50bb923a9 don't shadow globals Benjamin Peterson <benjamin@python.org> parents: 66307 diff changeset	1337 if errno_num != 0:
43e50bb923a9 don't shadow globals Benjamin Peterson <benjamin@python.org> parents: 66307 diff changeset	1338 err_msg = os.strerror(errno_num)
43e50bb923a9 don't shadow globals Benjamin Peterson <benjamin@python.org> parents: 66307 diff changeset	1339 if errno_num == errno.ENOENT:
66307 c06ed25e69b8 add filename to ENOENT message #4925 Benjamin Peterson <benjamin@python.org> parents: 64518 diff changeset	1340 err_msg += ': ' + repr(args[0])
66309 43e50bb923a9 don't shadow globals Benjamin Peterson <benjamin@python.org> parents: 66307 diff changeset	1341 raise child_exception_type(errno_num, err_msg)
59605 768722b2ae0a * Replaces the internals of the subprocess module from fork through exec on Gregory P. Smith <greg@mad-scientist.com> parents: 59471 diff changeset	1342 raise child_exception_type(err_msg)
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1343
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1344
61569 58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1345 def _handle_exitstatus(self, sts, _WIFSIGNALED=os.WIFSIGNALED,
58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1346 _WTERMSIG=os.WTERMSIG, _WIFEXITED=os.WIFEXITED,
58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1347 _WEXITSTATUS=os.WEXITSTATUS):
58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1348 # This method is called (indirectly) by __del__, so it cannot
58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1349 # refer to anything outside of its local scope."""
58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1350 if _WIFSIGNALED(sts):
58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1351 self.returncode = -_WTERMSIG(sts)
58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1352 elif _WIFEXITED(sts):
58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1353 self.returncode = _WEXITSTATUS(sts)
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1354 else:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1355 # Should never happen
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1356 raise RuntimeError("Unknown child exit status!")
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1357
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1358
61569 58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1359 def _internal_poll(self, _deadstate=None, _waitpid=os.waitpid,
58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1360 _WNOHANG=os.WNOHANG, _os_error=os.error):
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1361 """Check if child process has terminated. Returns returncode
61569 58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1362 attribute.
58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1363
58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1364 This method is called by __del__, so it cannot reference anything
58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1365 outside of the local scope (nor can any methods it calls).
58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1366
58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1367 """
34575 4545a154fac1 Patch from Leandro Lucarella: replaced: Peter Astrand <astrand@lysator.liu.se> parents: 34551 diff changeset	1368 if self.returncode is None:
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1369 try:
61569 58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1370 pid, sts = _waitpid(self.pid, _WNOHANG)
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1371 if pid == self.pid:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1372 self._handle_exitstatus(sts)
61569 58a56aba0eb2 Backport r81155. Brett Cannon <bcannon@gmail.com> parents: 60923 diff changeset	1373 except _os_error:
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 37048 diff changeset	1374 if _deadstate is not None:
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 37048 diff changeset	1375 self.returncode = _deadstate
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1376 return self.returncode
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1377
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1378
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1379 def _try_wait(self, wait_flags):
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1380 try:
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1381 (pid, sts) = _eintr_retry_call(os.waitpid, self.pid, wait_flags)
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1382 except OSError as e:
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1383 if e.errno != errno.ECHILD:
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1384 raise
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1385 # This happens if SIGCLD is set to be ignored or waiting
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1386 # for child processes has otherwise been disabled for our
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1387 # process. This child is dead, we can't get the status.
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1388 pid = self.pid
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1389 sts = 0
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1390 return (pid, sts)
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1391
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1392
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1393 def wait(self, timeout=None, endtime=None):
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1394 """Wait for child process to terminate. Returns returncode
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1395 attribute."""
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1396 if self.returncode is not None:
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1397 return self.returncode
68618 a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	1398
a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	1399 # endtime is preferred to timeout. timeout is only used for
a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	1400 # printing.
a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	1401 if endtime is not None or timeout is not None:
a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	1402 if endtime is None:
a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	1403 endtime = time.time() + timeout
a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	1404 elif timeout is None:
a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	1405 timeout = self._remaining_time(endtime)
a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	1406
a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	1407 if endtime is not None:
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1408 # Enter a busy loop if we have a timeout. This busy loop was
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1409 # cribbed from Lib/threading.py in Thread.wait() at r71065.
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1410 delay = 0.0005 # 500 us -> initial delay of 1 ms
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1411 while True:
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1412 (pid, sts) = self._try_wait(os.WNOHANG)
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1413 assert pid == self.pid or pid == 0
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1414 if pid == self.pid:
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1415 self._handle_exitstatus(sts)
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1416 break
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1417 remaining = self._remaining_time(endtime)
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1418 if remaining <= 0:
68618 a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	1419 raise TimeoutExpired(self.args, timeout)
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1420 delay = min(delay * 2, remaining, .05)
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1421 time.sleep(delay)
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1422 elif self.returncode is None:
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1423 (pid, sts) = self._try_wait(0)
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1424 self._handle_exitstatus(sts)
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1425 return self.returncode
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1426
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1427
68618 a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	1428 def _communicate(self, input, endtime, orig_timeout):
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1429 if self.stdin and not self._communication_started:
55602 680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1430 # Flush stdio buffer. This might block, if the user has
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1431 # been writing to .stdin in an uncontrolled fashion.
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1432 self.stdin.flush()
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1433 if not input:
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1434 self.stdin.close()
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1435
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1436 if _has_poll:
68618 a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	1437 stdout, stderr = self._communicate_with_poll(input, endtime,
a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	1438 orig_timeout)
55602 680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1439 else:
68618 a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	1440 stdout, stderr = self._communicate_with_select(input, endtime,
a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	1441 orig_timeout)
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1442
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1443 self.wait(timeout=self._remaining_time(endtime))
55602 680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1444
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1445 # All data exchanged. Translate lists into strings.
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1446 if stdout is not None:
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1447 stdout = b''.join(stdout)
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1448 if stderr is not None:
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1449 stderr = b''.join(stderr)
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1450
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1451 # Translate newlines, if requested.
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1452 # This also turns bytes into strings.
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1453 if self.universal_newlines:
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1454 if stdout is not None:
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1455 stdout = self._translate_newlines(stdout,
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1456 self.stdout.encoding)
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1457 if stderr is not None:
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1458 stderr = self._translate_newlines(stderr,
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1459 self.stderr.encoding)
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1460
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1461 return (stdout, stderr)
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1462
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1463
68618 a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	1464 def _communicate_with_poll(self, input, endtime, orig_timeout):
55602 680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1465 stdout = None # Return
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1466 stderr = None # Return
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1467
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1468 if not self._communication_started:
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1469 self._fd2file = {}
55602 680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1470
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1471 poller = select.poll()
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1472 def register_and_append(file_obj, eventmask):
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1473 poller.register(file_obj.fileno(), eventmask)
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1474 self._fd2file[file_obj.fileno()] = file_obj
55602 680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1475
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1476 def close_unregister_and_remove(fd):
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1477 poller.unregister(fd)
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1478 self._fd2file[fd].close()
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1479 self._fd2file.pop(fd)
55602 680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1480
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1481 if self.stdin and input:
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1482 register_and_append(self.stdin, select.POLLOUT)
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1483
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1484 # Only create this mapping if we haven't already.
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1485 if not self._communication_started:
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1486 self._fd2output = {}
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1487 if self.stdout:
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1488 self._fd2output[self.stdout.fileno()] = []
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1489 if self.stderr:
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1490 self._fd2output[self.stderr.fileno()] = []
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1491
55602 680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1492 select_POLLIN_POLLPRI = select.POLLIN \| select.POLLPRI
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1493 if self.stdout:
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1494 register_and_append(self.stdout, select_POLLIN_POLLPRI)
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1495 stdout = self._fd2output[self.stdout.fileno()]
55602 680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1496 if self.stderr:
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1497 register_and_append(self.stderr, select_POLLIN_POLLPRI)
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1498 stderr = self._fd2output[self.stderr.fileno()]
55602 680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1499
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1500 # Save the input here so that if we time out while communicating,
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1501 # we can continue sending input if we retry.
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1502 if self.stdin and self._input is None:
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1503 self._input_offset = 0
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1504 self._input = input
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1505 if self.universal_newlines:
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1506 self._input = self._input.encode(self.stdin.encoding)
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1507
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1508 while self._fd2file:
69152 3664fc29e867 Issue #11757: subprocess ensures that select() and poll() timeout >= 0 Victor Stinner <victor.stinner@haypocalc.com> parents: 69011 diff changeset	1509 timeout = self._remaining_time(endtime)
3664fc29e867 Issue #11757: subprocess ensures that select() and poll() timeout >= 0 Victor Stinner <victor.stinner@haypocalc.com> parents: 69011 diff changeset	1510 if timeout is not None and timeout < 0:
3664fc29e867 Issue #11757: subprocess ensures that select() and poll() timeout >= 0 Victor Stinner <victor.stinner@haypocalc.com> parents: 69011 diff changeset	1511 raise TimeoutExpired(self.args, orig_timeout)
55602 680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1512 try:
69152 3664fc29e867 Issue #11757: subprocess ensures that select() and poll() timeout >= 0 Victor Stinner <victor.stinner@haypocalc.com> parents: 69011 diff changeset	1513 ready = poller.poll(timeout)
55602 680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1514 except select.error as e:
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1515 if e.args[0] == errno.EINTR:
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1516 continue
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1517 raise
68618 a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	1518 self._check_timeout(endtime, orig_timeout)
55602 680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1519
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1520 # XXX Rewrite these to use non-blocking I/O on the
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1521 # file objects; they are no longer using C stdio!
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1522
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1523 for fd, mode in ready:
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1524 if mode & select.POLLOUT:
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1525 chunk = self._input[self._input_offset :
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1526 self._input_offset + _PIPE_BUF]
69154 158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	1527 try:
69156 c81ad4361c49 Merge with 3.2 Ross Lagerwall <rosslagerwall@gmail.com> parents: 69152 69155 diff changeset	1528 self._input_offset += os.write(fd, chunk)
69154 158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	1529 except OSError as e:
158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	1530 if e.errno == errno.EPIPE:
158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	1531 close_unregister_and_remove(fd)
158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	1532 else:
158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	1533 raise
158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	1534 else:
69156 c81ad4361c49 Merge with 3.2 Ross Lagerwall <rosslagerwall@gmail.com> parents: 69152 69155 diff changeset	1535 if self._input_offset >= len(self._input):
69154 158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	1536 close_unregister_and_remove(fd)
55602 680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1537 elif mode & select_POLLIN_POLLPRI:
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1538 data = os.read(fd, 4096)
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1539 if not data:
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1540 close_unregister_and_remove(fd)
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1541 self._fd2output[fd].append(data)
55602 680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1542 else:
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1543 # Ignore hang up or errors.
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1544 close_unregister_and_remove(fd)
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1545
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1546 return (stdout, stderr)
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1547
680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1548
68618 a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	1549 def _communicate_with_select(self, input, endtime, orig_timeout):
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1550 if not self._communication_started:
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1551 self._read_set = []
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1552 self._write_set = []
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1553 if self.stdin and input:
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1554 self._write_set.append(self.stdin)
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1555 if self.stdout:
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1556 self._read_set.append(self.stdout)
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1557 if self.stderr:
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1558 self._read_set.append(self.stderr)
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1559
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1560 if self.stdin and self._input is None:
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1561 self._input_offset = 0
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1562 self._input = input
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1563 if self.universal_newlines:
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1564 self._input = self._input.encode(self.stdin.encoding)
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1565
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1566 stdout = None # Return
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1567 stderr = None # Return
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1568
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1569 if self.stdout:
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1570 if not self._communication_started:
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1571 self._stdout_buff = []
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1572 stdout = self._stdout_buff
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1573 if self.stderr:
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1574 if not self._communication_started:
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1575 self._stderr_buff = []
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1576 stderr = self._stderr_buff
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1577
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1578 while self._read_set or self._write_set:
69152 3664fc29e867 Issue #11757: subprocess ensures that select() and poll() timeout >= 0 Victor Stinner <victor.stinner@haypocalc.com> parents: 69011 diff changeset	1579 timeout = self._remaining_time(endtime)
3664fc29e867 Issue #11757: subprocess ensures that select() and poll() timeout >= 0 Victor Stinner <victor.stinner@haypocalc.com> parents: 69011 diff changeset	1580 if timeout is not None and timeout < 0:
3664fc29e867 Issue #11757: subprocess ensures that select() and poll() timeout >= 0 Victor Stinner <victor.stinner@haypocalc.com> parents: 69011 diff changeset	1581 raise TimeoutExpired(self.args, orig_timeout)
48494 aca5b2e6a66f Merged revisions 64623,64640,64665,64687,64689-64690,64719,64721,64735,64742,64744-64746,64756-64761,64767-64769,64771-64772,64774-64775,64788,64793,64835-64836 via svnmerge from Georg Brandl <georg@python.org> parents: 48395 diff changeset	1582 try:
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1583 (rlist, wlist, xlist) = \
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1584 select.select(self._read_set, self._write_set, [],
69152 3664fc29e867 Issue #11757: subprocess ensures that select() and poll() timeout >= 0 Victor Stinner <victor.stinner@haypocalc.com> parents: 69011 diff changeset	1585 timeout)
48494 aca5b2e6a66f Merged revisions 64623,64640,64665,64687,64689-64690,64719,64721,64735,64742,64744-64746,64756-64761,64767-64769,64771-64772,64774-64775,64788,64793,64835-64836 via svnmerge from Georg Brandl <georg@python.org> parents: 48395 diff changeset	1586 except select.error as e:
aca5b2e6a66f Merged revisions 64623,64640,64665,64687,64689-64690,64719,64721,64735,64742,64744-64746,64756-64761,64767-64769,64771-64772,64774-64775,64788,64793,64835-64836 via svnmerge from Georg Brandl <georg@python.org> parents: 48395 diff changeset	1587 if e.args[0] == errno.EINTR:
aca5b2e6a66f Merged revisions 64623,64640,64665,64687,64689-64690,64719,64721,64735,64742,64744-64746,64756-64761,64767-64769,64771-64772,64774-64775,64788,64793,64835-64836 via svnmerge from Georg Brandl <georg@python.org> parents: 48395 diff changeset	1588 continue
aca5b2e6a66f Merged revisions 64623,64640,64665,64687,64689-64690,64719,64721,64735,64742,64744-64746,64756-64761,64767-64769,64771-64772,64774-64775,64788,64793,64835-64836 via svnmerge from Georg Brandl <georg@python.org> parents: 48395 diff changeset	1589 raise
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1590
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1591 # According to the docs, returning three empty lists indicates
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1592 # that the timeout expired.
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1593 if not (rlist or wlist or xlist):
68618 a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	1594 raise TimeoutExpired(self.args, orig_timeout)
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1595 # We also check what time it is ourselves for good measure.
68618 a161081e8f7c Include the timeout value in TimeoutExpired. Reid Kleckner <reid@kleckner.net> parents: 68600 diff changeset	1596 self._check_timeout(endtime, orig_timeout)
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1597
43777 0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch. Guido van Rossum <guido@python.org> parents: 43684 diff changeset	1598 # XXX Rewrite these to use non-blocking I/O on the
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch. Guido van Rossum <guido@python.org> parents: 43684 diff changeset	1599 # file objects; they are no longer using C stdio!
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch. Guido van Rossum <guido@python.org> parents: 43684 diff changeset	1600
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1601 if self.stdin in wlist:
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1602 chunk = self._input[self._input_offset :
c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1603 self._input_offset + _PIPE_BUF]
69154 158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	1604 try:
158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	1605 bytes_written = os.write(self.stdin.fileno(), chunk)
158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	1606 except OSError as e:
158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	1607 if e.errno == errno.EPIPE:
158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	1608 self.stdin.close()
69156 c81ad4361c49 Merge with 3.2 Ross Lagerwall <rosslagerwall@gmail.com> parents: 69152 69155 diff changeset	1609 self._write_set.remove(self.stdin)
69154 158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	1610 else:
158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	1611 raise
158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	1612 else:
69156 c81ad4361c49 Merge with 3.2 Ross Lagerwall <rosslagerwall@gmail.com> parents: 69152 69155 diff changeset	1613 self._input_offset += bytes_written
c81ad4361c49 Merge with 3.2 Ross Lagerwall <rosslagerwall@gmail.com> parents: 69152 69155 diff changeset	1614 if self._input_offset >= len(self._input):
69154 158495d49f58 Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. Ross Lagerwall <rosslagerwall@gmail.com> parents: 68679 diff changeset	1615 self.stdin.close()
69156 c81ad4361c49 Merge with 3.2 Ross Lagerwall <rosslagerwall@gmail.com> parents: 69152 69155 diff changeset	1616 self._write_set.remove(self.stdin)
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1617
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1618 if self.stdout in rlist:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1619 data = os.read(self.stdout.fileno(), 1024)
41732 bbb099d4ec80 Make test_subprocess pass. The subprocess module now reads and writes Guido van Rossum <guido@python.org> parents: 41731 diff changeset	1620 if not data:
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1621 self.stdout.close()
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1622 self._read_set.remove(self.stdout)
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1623 stdout.append(data)
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1624
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1625 if self.stderr in rlist:
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1626 data = os.read(self.stderr.fileno(), 1024)
41732 bbb099d4ec80 Make test_subprocess pass. The subprocess module now reads and writes Guido van Rossum <guido@python.org> parents: 41731 diff changeset	1627 if not data:
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1628 self.stderr.close()
68454 c4a0fa6e687c Add a 'timeout' argument to subprocess.Popen. Reid Kleckner <reid@kleckner.net> parents: 68258 diff changeset	1629 self._read_set.remove(self.stderr)
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1630 stderr.append(data)
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1631
55602 680ad8eed33b Merged revisions 73833,73838,73850-73852,73856-73857 via svnmerge from Georg Brandl <georg@python.org> parents: 54797 diff changeset	1632 return (stdout, stderr)
33723 76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1633
76641824cf05 Added Peter Astrand's subprocess module. Fredrik Lundh <fredrik@pythonware.com> parents: diff changeset	1634
46505 63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	1635 def send_signal(self, sig):
63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	1636 """Send a signal to the process
63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	1637 """
63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	1638 os.kill(self.pid, sig)
63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	1639
63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	1640 def terminate(self):
63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	1641 """Terminate the process with SIGTERM
63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	1642 """
63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	1643 self.send_signal(signal.SIGTERM)
63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	1644
63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	1645 def kill(self):
63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	1646 """Kill the process with SIGKILL
63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	1647 """
63965327b3ef Merged revisions 62386-62387,62389-62393,62396,62400-62402,62407,62409-62410,62412-62414,62418-62419 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44810 diff changeset	1648 self.send_signal(signal.SIGKILL)

Mercurial > cpython-lru_cache-weakref

annotate Lib/subprocess.py @ 73798:6cde416ef03b