cpython-lru_cache-weakref: Lib/distutils/spawn.py annotate

annotate Lib/distutils/spawn.py @ 25135:0f0016632be4 legacy-trunk

_formatparam(), set_param(): RFC 2231 encoding support by Oleg Broytmann in SF patch #600096. Specifically, the former function now encodes the triplets, while the latter adds optional charset and language arguments.

author	Barry Warsaw <barry@python.org>
date	Fri, 06 Sep 2002 03:55:04 +0000
parents	ca87119255eb
children	f465d6692bde

rev	line source
11198 e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	1 """distutils.spawn
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	2
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	3 Provides the 'spawn()' function, a front-end to various platform-
13803 e8b22bc88d95 Rene Liebscher: factor 'find_executable()' out of '_spawn_nt()'. Greg Ward <gward@python.net> parents: 12058 diff changeset	4 specific functions for launching another program in a sub-process.
e8b22bc88d95 Rene Liebscher: factor 'find_executable()' out of '_spawn_nt()'. Greg Ward <gward@python.net> parents: 12058 diff changeset	5 Also provides the 'find_executable()' to search the path for a given
14861 09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	6 executable name.
09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	7 """
11198 e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	8
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	9 # created 1999/07/24, Greg Ward
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	10
11897 017e592c0fd2 Changed '__rcsid__' to '__revision__'. Greg Ward <gward@python.net> parents: 11665 diff changeset	11 __revision__ = "$Id$"
11198 e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	12
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	13 import sys, os, string
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	14 from distutils.errors import *
23668 ca87119255eb Make setup.py less chatty by default. Jeremy Hylton <jeremy@alum.mit.edu> parents: 21851 diff changeset	15 from distutils import log
11198 e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	16
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	17 def spawn (cmd,
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	18 search_path=1,
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	19 verbose=0,
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	20 dry_run=0):
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	21
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	22 """Run another program, specified as a command list 'cmd', in a new
14861 09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	23 process. 'cmd' is just the argument list for the new process, ie.
09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	24 cmd[0] is the program to run and cmd[1:] are the rest of its arguments.
09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	25 There is no way to run a program with a name different from that of its
09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	26 executable.
11198 e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	27
14861 09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	28 If 'search_path' is true (the default), the system's executable search
09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	29 path will be used to find the program; otherwise, cmd[0] must be the
23668 ca87119255eb Make setup.py less chatty by default. Jeremy Hylton <jeremy@alum.mit.edu> parents: 21851 diff changeset	30 exact path to the executable.If 'dry_run' is true,
14861 09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	31 the command will not actually be run.
11198 e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	32
14861 09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	33 Raise DistutilsExecError if running the program fails in any way; just
09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	34 return on success.
09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	35 """
11198 e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	36 if os.name == 'posix':
23668 ca87119255eb Make setup.py less chatty by default. Jeremy Hylton <jeremy@alum.mit.edu> parents: 21851 diff changeset	37 _spawn_posix(cmd, search_path, dry_run=dry_run)
11257 9286d3e1474c [from 1999/08/28] Greg Ward <gward@python.net> parents: 11250 diff changeset	38 elif os.name == 'nt':
23668 ca87119255eb Make setup.py less chatty by default. Jeremy Hylton <jeremy@alum.mit.edu> parents: 21851 diff changeset	39 _spawn_nt(cmd, search_path, dry_run=dry_run)
21851 e0fc286d57a4 OS/2 patches by Andrew I MacIntyre for distutils. Marc-André Lemburg <mal@egenix.com> parents: 21267 diff changeset	40 elif os.name == 'os2':
23668 ca87119255eb Make setup.py less chatty by default. Jeremy Hylton <jeremy@alum.mit.edu> parents: 21851 diff changeset	41 _spawn_os2(cmd, search_path, dry_run=dry_run)
11198 e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	42 else:
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	43 raise DistutilsPlatformError, \
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	44 "don't know how to spawn programs on platform '%s'" % os.name
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	45
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	46 # spawn ()
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	47
11257 9286d3e1474c [from 1999/08/28] Greg Ward <gward@python.net> parents: 11250 diff changeset	48
11933 68e0ef052815 Added '_nt_quote_args()' to deal with whitespace in command-line arguments Greg Ward <gward@python.net> parents: 11897 diff changeset	49 def _nt_quote_args (args):
14861 09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	50 """Quote command-line arguments for DOS/Windows conventions: just
09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	51 wraps every argument which contains blanks in double quotes, and
09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	52 returns a new argument list.
09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	53 """
11933 68e0ef052815 Added '_nt_quote_args()' to deal with whitespace in command-line arguments Greg Ward <gward@python.net> parents: 11897 diff changeset	54
68e0ef052815 Added '_nt_quote_args()' to deal with whitespace in command-line arguments Greg Ward <gward@python.net> parents: 11897 diff changeset	55 # XXX this doesn't seem very robust to me -- but if the Windows guys
68e0ef052815 Added '_nt_quote_args()' to deal with whitespace in command-line arguments Greg Ward <gward@python.net> parents: 11897 diff changeset	56 # say it'll work, I guess I'll have to accept it. (What if an arg
68e0ef052815 Added '_nt_quote_args()' to deal with whitespace in command-line arguments Greg Ward <gward@python.net> parents: 11897 diff changeset	57 # contains quotes? What other magic characters, other than spaces,
68e0ef052815 Added '_nt_quote_args()' to deal with whitespace in command-line arguments Greg Ward <gward@python.net> parents: 11897 diff changeset	58 # have to be escaped? Is there an escaping mechanism other than
68e0ef052815 Added '_nt_quote_args()' to deal with whitespace in command-line arguments Greg Ward <gward@python.net> parents: 11897 diff changeset	59 # quoting?)
68e0ef052815 Added '_nt_quote_args()' to deal with whitespace in command-line arguments Greg Ward <gward@python.net> parents: 11897 diff changeset	60
14861 09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	61 for i in range(len(args)):
09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	62 if string.find(args[i], ' ') != -1:
11933 68e0ef052815 Added '_nt_quote_args()' to deal with whitespace in command-line arguments Greg Ward <gward@python.net> parents: 11897 diff changeset	63 args[i] = '"%s"' % args[i]
12058 c6cb0d266839 Duh, it helps if '_nt_quote_args()' actually returns the mutated list, Greg Ward <gward@python.net> parents: 12043 diff changeset	64 return args
11933 68e0ef052815 Added '_nt_quote_args()' to deal with whitespace in command-line arguments Greg Ward <gward@python.net> parents: 11897 diff changeset	65
68e0ef052815 Added '_nt_quote_args()' to deal with whitespace in command-line arguments Greg Ward <gward@python.net> parents: 11897 diff changeset	66 def _spawn_nt (cmd,
68e0ef052815 Added '_nt_quote_args()' to deal with whitespace in command-line arguments Greg Ward <gward@python.net> parents: 11897 diff changeset	67 search_path=1,
68e0ef052815 Added '_nt_quote_args()' to deal with whitespace in command-line arguments Greg Ward <gward@python.net> parents: 11897 diff changeset	68 verbose=0,
68e0ef052815 Added '_nt_quote_args()' to deal with whitespace in command-line arguments Greg Ward <gward@python.net> parents: 11897 diff changeset	69 dry_run=0):
68e0ef052815 Added '_nt_quote_args()' to deal with whitespace in command-line arguments Greg Ward <gward@python.net> parents: 11897 diff changeset	70
11250 b3f1abd3027f Patch from Perry Stoll: support for Windows. Greg Ward <gward@python.net> parents: 11198 diff changeset	71 executable = cmd[0]
14861 09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	72 cmd = _nt_quote_args(cmd)
11250 b3f1abd3027f Patch from Perry Stoll: support for Windows. Greg Ward <gward@python.net> parents: 11198 diff changeset	73 if search_path:
13803 e8b22bc88d95 Rene Liebscher: factor 'find_executable()' out of '_spawn_nt()'. Greg Ward <gward@python.net> parents: 12058 diff changeset	74 # either we find one or it stays the same
21267 7a7f557b4d54 Whitespace normalization. Fred Drake <fdrake@acm.org> parents: 14861 diff changeset	75 executable = find_executable(executable) or executable
23668 ca87119255eb Make setup.py less chatty by default. Jeremy Hylton <jeremy@alum.mit.edu> parents: 21851 diff changeset	76 log.info(string.join([executable] + cmd[1:], ' '))
11250 b3f1abd3027f Patch from Perry Stoll: support for Windows. Greg Ward <gward@python.net> parents: 11198 diff changeset	77 if not dry_run:
b3f1abd3027f Patch from Perry Stoll: support for Windows. Greg Ward <gward@python.net> parents: 11198 diff changeset	78 # spawn for NT requires a full path to the .exe
11665 e998b350a4bb Catch OSError from 'spawnv()' in '_spawn_nt()'. Greg Ward <gward@python.net> parents: 11257 diff changeset	79 try:
14861 09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	80 rc = os.spawnv(os.P_WAIT, executable, cmd)
11665 e998b350a4bb Catch OSError from 'spawnv()' in '_spawn_nt()'. Greg Ward <gward@python.net> parents: 11257 diff changeset	81 except OSError, exc:
e998b350a4bb Catch OSError from 'spawnv()' in '_spawn_nt()'. Greg Ward <gward@python.net> parents: 11257 diff changeset	82 # this seems to happen when the command isn't found
e998b350a4bb Catch OSError from 'spawnv()' in '_spawn_nt()'. Greg Ward <gward@python.net> parents: 11257 diff changeset	83 raise DistutilsExecError, \
e998b350a4bb Catch OSError from 'spawnv()' in '_spawn_nt()'. Greg Ward <gward@python.net> parents: 11257 diff changeset	84 "command '%s' failed: %s" % (cmd[0], exc[-1])
11250 b3f1abd3027f Patch from Perry Stoll: support for Windows. Greg Ward <gward@python.net> parents: 11198 diff changeset	85 if rc != 0:
11665 e998b350a4bb Catch OSError from 'spawnv()' in '_spawn_nt()'. Greg Ward <gward@python.net> parents: 11257 diff changeset	86 # and this reflects the command running but failing
e998b350a4bb Catch OSError from 'spawnv()' in '_spawn_nt()'. Greg Ward <gward@python.net> parents: 11257 diff changeset	87 raise DistutilsExecError, \
e998b350a4bb Catch OSError from 'spawnv()' in '_spawn_nt()'. Greg Ward <gward@python.net> parents: 11257 diff changeset	88 "command '%s' failed with exit status %d" % (cmd[0], rc)
11198 e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	89
21267 7a7f557b4d54 Whitespace normalization. Fred Drake <fdrake@acm.org> parents: 14861 diff changeset	90
21851 e0fc286d57a4 OS/2 patches by Andrew I MacIntyre for distutils. Marc-André Lemburg <mal@egenix.com> parents: 21267 diff changeset	91 def _spawn_os2 (cmd,
e0fc286d57a4 OS/2 patches by Andrew I MacIntyre for distutils. Marc-André Lemburg <mal@egenix.com> parents: 21267 diff changeset	92 search_path=1,
e0fc286d57a4 OS/2 patches by Andrew I MacIntyre for distutils. Marc-André Lemburg <mal@egenix.com> parents: 21267 diff changeset	93 verbose=0,
e0fc286d57a4 OS/2 patches by Andrew I MacIntyre for distutils. Marc-André Lemburg <mal@egenix.com> parents: 21267 diff changeset	94 dry_run=0):
e0fc286d57a4 OS/2 patches by Andrew I MacIntyre for distutils. Marc-André Lemburg <mal@egenix.com> parents: 21267 diff changeset	95
e0fc286d57a4 OS/2 patches by Andrew I MacIntyre for distutils. Marc-André Lemburg <mal@egenix.com> parents: 21267 diff changeset	96 executable = cmd[0]
e0fc286d57a4 OS/2 patches by Andrew I MacIntyre for distutils. Marc-André Lemburg <mal@egenix.com> parents: 21267 diff changeset	97 #cmd = _nt_quote_args(cmd)
e0fc286d57a4 OS/2 patches by Andrew I MacIntyre for distutils. Marc-André Lemburg <mal@egenix.com> parents: 21267 diff changeset	98 if search_path:
e0fc286d57a4 OS/2 patches by Andrew I MacIntyre for distutils. Marc-André Lemburg <mal@egenix.com> parents: 21267 diff changeset	99 # either we find one or it stays the same
e0fc286d57a4 OS/2 patches by Andrew I MacIntyre for distutils. Marc-André Lemburg <mal@egenix.com> parents: 21267 diff changeset	100 executable = find_executable(executable) or executable
23668 ca87119255eb Make setup.py less chatty by default. Jeremy Hylton <jeremy@alum.mit.edu> parents: 21851 diff changeset	101 log.info(string.join([executable] + cmd[1:], ' '))
21851 e0fc286d57a4 OS/2 patches by Andrew I MacIntyre for distutils. Marc-André Lemburg <mal@egenix.com> parents: 21267 diff changeset	102 if not dry_run:
e0fc286d57a4 OS/2 patches by Andrew I MacIntyre for distutils. Marc-André Lemburg <mal@egenix.com> parents: 21267 diff changeset	103 # spawnv for OS/2 EMX requires a full path to the .exe
e0fc286d57a4 OS/2 patches by Andrew I MacIntyre for distutils. Marc-André Lemburg <mal@egenix.com> parents: 21267 diff changeset	104 try:
e0fc286d57a4 OS/2 patches by Andrew I MacIntyre for distutils. Marc-André Lemburg <mal@egenix.com> parents: 21267 diff changeset	105 rc = os.spawnv(os.P_WAIT, executable, cmd)
e0fc286d57a4 OS/2 patches by Andrew I MacIntyre for distutils. Marc-André Lemburg <mal@egenix.com> parents: 21267 diff changeset	106 except OSError, exc:
e0fc286d57a4 OS/2 patches by Andrew I MacIntyre for distutils. Marc-André Lemburg <mal@egenix.com> parents: 21267 diff changeset	107 # this seems to happen when the command isn't found
e0fc286d57a4 OS/2 patches by Andrew I MacIntyre for distutils. Marc-André Lemburg <mal@egenix.com> parents: 21267 diff changeset	108 raise DistutilsExecError, \
e0fc286d57a4 OS/2 patches by Andrew I MacIntyre for distutils. Marc-André Lemburg <mal@egenix.com> parents: 21267 diff changeset	109 "command '%s' failed: %s" % (cmd[0], exc[-1])
e0fc286d57a4 OS/2 patches by Andrew I MacIntyre for distutils. Marc-André Lemburg <mal@egenix.com> parents: 21267 diff changeset	110 if rc != 0:
e0fc286d57a4 OS/2 patches by Andrew I MacIntyre for distutils. Marc-André Lemburg <mal@egenix.com> parents: 21267 diff changeset	111 # and this reflects the command running but failing
e0fc286d57a4 OS/2 patches by Andrew I MacIntyre for distutils. Marc-André Lemburg <mal@egenix.com> parents: 21267 diff changeset	112 print "command '%s' failed with exit status %d" % (cmd[0], rc)
e0fc286d57a4 OS/2 patches by Andrew I MacIntyre for distutils. Marc-André Lemburg <mal@egenix.com> parents: 21267 diff changeset	113 raise DistutilsExecError, \
e0fc286d57a4 OS/2 patches by Andrew I MacIntyre for distutils. Marc-André Lemburg <mal@egenix.com> parents: 21267 diff changeset	114 "command '%s' failed with exit status %d" % (cmd[0], rc)
e0fc286d57a4 OS/2 patches by Andrew I MacIntyre for distutils. Marc-André Lemburg <mal@egenix.com> parents: 21267 diff changeset	115
e0fc286d57a4 OS/2 patches by Andrew I MacIntyre for distutils. Marc-André Lemburg <mal@egenix.com> parents: 21267 diff changeset	116
11198 e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	117 def _spawn_posix (cmd,
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	118 search_path=1,
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	119 verbose=0,
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	120 dry_run=0):
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	121
23668 ca87119255eb Make setup.py less chatty by default. Jeremy Hylton <jeremy@alum.mit.edu> parents: 21851 diff changeset	122 log.info(string.join(cmd, ' '))
11198 e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	123 if dry_run:
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	124 return
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	125 exec_fn = search_path and os.execvp or os.execv
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	126
14861 09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	127 pid = os.fork()
11198 e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	128
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	129 if pid == 0: # in the child
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	130 try:
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	131 #print "cmd[0] =", cmd[0]
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	132 #print "cmd =", cmd
14861 09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	133 exec_fn(cmd[0], cmd)
11198 e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	134 except OSError, e:
14861 09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	135 sys.stderr.write("unable to execute %s: %s\n" %
09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	136 (cmd[0], e.strerror))
09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	137 os._exit(1)
21267 7a7f557b4d54 Whitespace normalization. Fred Drake <fdrake@acm.org> parents: 14861 diff changeset	138
14861 09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	139 sys.stderr.write("unable to execute %s for unknown reasons" % cmd[0])
09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	140 os._exit(1)
11198 e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	141
21267 7a7f557b4d54 Whitespace normalization. Fred Drake <fdrake@acm.org> parents: 14861 diff changeset	142
11198 e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	143 else: # in the parent
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	144 # Loop until the child either exits or is terminated by a signal
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	145 # (ie. keep waiting if it's merely stopped)
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	146 while 1:
14861 09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	147 (pid, status) = os.waitpid(pid, 0)
09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	148 if os.WIFSIGNALED(status):
11198 e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	149 raise DistutilsExecError, \
11665 e998b350a4bb Catch OSError from 'spawnv()' in '_spawn_nt()'. Greg Ward <gward@python.net> parents: 11257 diff changeset	150 "command '%s' terminated by signal %d" % \
14861 09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	151 (cmd[0], os.WTERMSIG(status))
11198 e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	152
14861 09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	153 elif os.WIFEXITED(status):
09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	154 exit_status = os.WEXITSTATUS(status)
11198 e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	155 if exit_status == 0:
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	156 return # hey, it succeeded!
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	157 else:
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	158 raise DistutilsExecError, \
11665 e998b350a4bb Catch OSError from 'spawnv()' in '_spawn_nt()'. Greg Ward <gward@python.net> parents: 11257 diff changeset	159 "command '%s' failed with exit status %d" % \
11198 e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	160 (cmd[0], exit_status)
21267 7a7f557b4d54 Whitespace normalization. Fred Drake <fdrake@acm.org> parents: 14861 diff changeset	161
14861 09c14ae5c2f5 Reformat docstrings. Greg Ward <gward@python.net> parents: 13803 diff changeset	162 elif os.WIFSTOPPED(status):
11198 e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	163 continue
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	164
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	165 else:
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	166 raise DistutilsExecError, \
11665 e998b350a4bb Catch OSError from 'spawnv()' in '_spawn_nt()'. Greg Ward <gward@python.net> parents: 11257 diff changeset	167 "unknown error executing '%s': termination status %d" % \
11198 e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	168 (cmd[0], status)
e8b24cd17df2 Module to spawn sub-commands in a platform-independent way. Greg Ward <gward@python.net> parents: diff changeset	169 # _spawn_posix ()
13803 e8b22bc88d95 Rene Liebscher: factor 'find_executable()' out of '_spawn_nt()'. Greg Ward <gward@python.net> parents: 12058 diff changeset	170
e8b22bc88d95 Rene Liebscher: factor 'find_executable()' out of '_spawn_nt()'. Greg Ward <gward@python.net> parents: 12058 diff changeset	171
e8b22bc88d95 Rene Liebscher: factor 'find_executable()' out of '_spawn_nt()'. Greg Ward <gward@python.net> parents: 12058 diff changeset	172 def find_executable(executable, path=None):
e8b22bc88d95 Rene Liebscher: factor 'find_executable()' out of '_spawn_nt()'. Greg Ward <gward@python.net> parents: 12058 diff changeset	173 """Try to find 'executable' in the directories listed in 'path' (a
e8b22bc88d95 Rene Liebscher: factor 'find_executable()' out of '_spawn_nt()'. Greg Ward <gward@python.net> parents: 12058 diff changeset	174 string listing directories separated by 'os.pathsep'; defaults to
e8b22bc88d95 Rene Liebscher: factor 'find_executable()' out of '_spawn_nt()'. Greg Ward <gward@python.net> parents: 12058 diff changeset	175 os.environ['PATH']). Returns the complete filename or None if not
e8b22bc88d95 Rene Liebscher: factor 'find_executable()' out of '_spawn_nt()'. Greg Ward <gward@python.net> parents: 12058 diff changeset	176 found.
e8b22bc88d95 Rene Liebscher: factor 'find_executable()' out of '_spawn_nt()'. Greg Ward <gward@python.net> parents: 12058 diff changeset	177 """
e8b22bc88d95 Rene Liebscher: factor 'find_executable()' out of '_spawn_nt()'. Greg Ward <gward@python.net> parents: 12058 diff changeset	178 if path is None:
e8b22bc88d95 Rene Liebscher: factor 'find_executable()' out of '_spawn_nt()'. Greg Ward <gward@python.net> parents: 12058 diff changeset	179 path = os.environ['PATH']
e8b22bc88d95 Rene Liebscher: factor 'find_executable()' out of '_spawn_nt()'. Greg Ward <gward@python.net> parents: 12058 diff changeset	180 paths = string.split(path, os.pathsep)
e8b22bc88d95 Rene Liebscher: factor 'find_executable()' out of '_spawn_nt()'. Greg Ward <gward@python.net> parents: 12058 diff changeset	181 (base, ext) = os.path.splitext(executable)
21851 e0fc286d57a4 OS/2 patches by Andrew I MacIntyre for distutils. Marc-André Lemburg <mal@egenix.com> parents: 21267 diff changeset	182 if (sys.platform == 'win32' or os.name == 'os2') and (ext != '.exe'):
13803 e8b22bc88d95 Rene Liebscher: factor 'find_executable()' out of '_spawn_nt()'. Greg Ward <gward@python.net> parents: 12058 diff changeset	183 executable = executable + '.exe'
e8b22bc88d95 Rene Liebscher: factor 'find_executable()' out of '_spawn_nt()'. Greg Ward <gward@python.net> parents: 12058 diff changeset	184 if not os.path.isfile(executable):
e8b22bc88d95 Rene Liebscher: factor 'find_executable()' out of '_spawn_nt()'. Greg Ward <gward@python.net> parents: 12058 diff changeset	185 for p in paths:
e8b22bc88d95 Rene Liebscher: factor 'find_executable()' out of '_spawn_nt()'. Greg Ward <gward@python.net> parents: 12058 diff changeset	186 f = os.path.join(p, executable)
e8b22bc88d95 Rene Liebscher: factor 'find_executable()' out of '_spawn_nt()'. Greg Ward <gward@python.net> parents: 12058 diff changeset	187 if os.path.isfile(f):
e8b22bc88d95 Rene Liebscher: factor 'find_executable()' out of '_spawn_nt()'. Greg Ward <gward@python.net> parents: 12058 diff changeset	188 # the file exists, we have a shot at spawn working
e8b22bc88d95 Rene Liebscher: factor 'find_executable()' out of '_spawn_nt()'. Greg Ward <gward@python.net> parents: 12058 diff changeset	189 return f
e8b22bc88d95 Rene Liebscher: factor 'find_executable()' out of '_spawn_nt()'. Greg Ward <gward@python.net> parents: 12058 diff changeset	190 return None
e8b22bc88d95 Rene Liebscher: factor 'find_executable()' out of '_spawn_nt()'. Greg Ward <gward@python.net> parents: 12058 diff changeset	191 else:
e8b22bc88d95 Rene Liebscher: factor 'find_executable()' out of '_spawn_nt()'. Greg Ward <gward@python.net> parents: 12058 diff changeset	192 return executable
e8b22bc88d95 Rene Liebscher: factor 'find_executable()' out of '_spawn_nt()'. Greg Ward <gward@python.net> parents: 12058 diff changeset	193
21267 7a7f557b4d54 Whitespace normalization. Fred Drake <fdrake@acm.org> parents: 14861 diff changeset	194 # find_executable()

Mercurial > cpython-lru_cache-weakref

annotate Lib/distutils/spawn.py @ 25135:0f0016632be4 legacy-trunk