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

annotate Lib/code.py @ 19283:b865cd5c1925 legacy-trunk

Added comments before recently added/assigned slots in the type object, so the backward compatibility issues will be easier to understand. I only added comments indicating additions and assignments back to Python 2.0.

author	Fred Drake <fdrake@acm.org>
date	Wed, 15 Aug 2001 18:32:33 +0000
parents	12c80b570d00
children	d5acff178ad5

rev	line source
9441 913eb31b0317 Moved compile_command() to a file of its own (codeop.py). Guido van Rossum <guido@python.org> parents: 9405 diff changeset	1 """Utilities needed to emulate Python's interactive interpreter.
9137 0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	2
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	3 """
5835 b9063f6f811c Checking in new module code.py -- utilities dealing with code objects. Guido van Rossum <guido@python.org> parents: diff changeset	4
11870 d7eca5b0960a Simple changes by Gerrit Holl - move author acknowledgements out of Guido van Rossum <guido@python.org> parents: 9441 diff changeset	5 # Inspired by similar code by Jeff Epler and Fredrik Lundh.
d7eca5b0960a Simple changes by Gerrit Holl - move author acknowledgements out of Guido van Rossum <guido@python.org> parents: 9441 diff changeset	6
9441 913eb31b0317 Moved compile_command() to a file of its own (codeop.py). Guido van Rossum <guido@python.org> parents: 9405 diff changeset	7
8543 e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	8 import sys
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	9 import traceback
9441 913eb31b0317 Moved compile_command() to a file of its own (codeop.py). Guido van Rossum <guido@python.org> parents: 9405 diff changeset	10 from codeop import compile_command
6423 644484e1a37b Add Jeff Epler's interact() function. Note that it is broken. Guido van Rossum <guido@python.org> parents: 5835 diff changeset	11
16070 b5345e99596b added __all__ lists to a number of Python modules Skip Montanaro <skip@pobox.com> parents: 15887 diff changeset	12 __all__ = ["InteractiveInterpreter","InteractiveConsole","interact",
b5345e99596b added __all__ lists to a number of Python modules Skip Montanaro <skip@pobox.com> parents: 15887 diff changeset	13 "compile_command"]
b5345e99596b added __all__ lists to a number of Python modules Skip Montanaro <skip@pobox.com> parents: 15887 diff changeset	14
15847 679d50705e06 SF Patch #103227 by mwh: make code.py appreciate softspace Guido van Rossum <guido@python.org> parents: 15669 diff changeset	15 def softspace(file, newvalue):
679d50705e06 SF Patch #103227 by mwh: make code.py appreciate softspace Guido van Rossum <guido@python.org> parents: 15669 diff changeset	16 oldvalue = 0
679d50705e06 SF Patch #103227 by mwh: make code.py appreciate softspace Guido van Rossum <guido@python.org> parents: 15669 diff changeset	17 try:
679d50705e06 SF Patch #103227 by mwh: make code.py appreciate softspace Guido van Rossum <guido@python.org> parents: 15669 diff changeset	18 oldvalue = file.softspace
679d50705e06 SF Patch #103227 by mwh: make code.py appreciate softspace Guido van Rossum <guido@python.org> parents: 15669 diff changeset	19 except AttributeError:
679d50705e06 SF Patch #103227 by mwh: make code.py appreciate softspace Guido van Rossum <guido@python.org> parents: 15669 diff changeset	20 pass
679d50705e06 SF Patch #103227 by mwh: make code.py appreciate softspace Guido van Rossum <guido@python.org> parents: 15669 diff changeset	21 try:
679d50705e06 SF Patch #103227 by mwh: make code.py appreciate softspace Guido van Rossum <guido@python.org> parents: 15669 diff changeset	22 file.softspace = newvalue
679d50705e06 SF Patch #103227 by mwh: make code.py appreciate softspace Guido van Rossum <guido@python.org> parents: 15669 diff changeset	23 except TypeError: # "attribute-less object" or "read-only attributes"
679d50705e06 SF Patch #103227 by mwh: make code.py appreciate softspace Guido van Rossum <guido@python.org> parents: 15669 diff changeset	24 pass
679d50705e06 SF Patch #103227 by mwh: make code.py appreciate softspace Guido van Rossum <guido@python.org> parents: 15669 diff changeset	25 return oldvalue
6423 644484e1a37b Add Jeff Epler's interact() function. Note that it is broken. Guido van Rossum <guido@python.org> parents: 5835 diff changeset	26
9137 0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	27 class InteractiveInterpreter:
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	28 """Base class for InteractiveConsole.
8543 e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	29
9137 0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	30 This class deals with parsing and interpreter state (the user's
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	31 namespace); it doesn't deal with input buffering or prompting or
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	32 input file naming (the filename is always passed in explicitly).
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	33
8543 e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	34 """
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	35
9137 0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	36 def __init__(self, locals=None):
8543 e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	37 """Constructor.
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	38
9137 0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	39 The optional 'locals' argument specifies the dictionary in
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	40 which code will be executed; it defaults to a newly created
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	41 dictionary with key "__name__" set to "__console__" and key
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	42 "__doc__" set to None.
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	43
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	44 """
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	45 if locals is None:
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	46 locals = {"__name__": "__console__", "__doc__": None}
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	47 self.locals = locals
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	48
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	49 def runsource(self, source, filename="<input>", symbol="single"):
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	50 """Compile and run some source in the interpreter.
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	51
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	52 Arguments are as for compile_command().
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	53
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	54 One several things can happen:
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	55
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	56 1) The input is incorrect; compile_command() raised an
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	57 exception (SyntaxError or OverflowError). A syntax traceback
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	58 will be printed by calling the showsyntaxerror() method.
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	59
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	60 2) The input is incomplete, and more input is required;
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	61 compile_command() returned None. Nothing happens.
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	62
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	63 3) The input is complete; compile_command() returned a code
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	64 object. The code is executed by calling self.runcode() (which
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	65 also handles run-time exceptions, except for SystemExit).
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	66
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	67 The return value is 1 in case 2, 0 in the other cases (unless
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	68 an exception is raised). The return value can be used to
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	69 decide whether to use sys.ps1 or sys.ps2 to prompt the next
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	70 line.
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	71
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	72 """
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	73 try:
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	74 code = compile_command(source, filename, symbol)
15887 f83115edf16a mwh@sourceforge found that UnicodeError can be raised by compiling. Guido van Rossum <guido@python.org> parents: 15863 diff changeset	75 except (OverflowError, SyntaxError, ValueError):
9137 0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	76 # Case 1
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	77 self.showsyntaxerror(filename)
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	78 return 0
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	79
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	80 if code is None:
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	81 # Case 2
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	82 return 1
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	83
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	84 # Case 3
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	85 self.runcode(code)
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	86 return 0
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	87
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	88 def runcode(self, code):
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	89 """Execute a code object.
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	90
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	91 When an exception occurs, self.showtraceback() is called to
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	92 display a traceback. All exceptions are caught except
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	93 SystemExit, which is reraised.
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	94
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	95 A note about KeyboardInterrupt: this exception may occur
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	96 elsewhere in this code, and may not always be caught. The
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	97 caller should be prepared to deal with it.
8543 e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	98
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	99 """
9137 0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	100 try:
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	101 exec code in self.locals
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	102 except SystemExit:
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	103 raise
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	104 except:
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	105 self.showtraceback()
15847 679d50705e06 SF Patch #103227 by mwh: make code.py appreciate softspace Guido van Rossum <guido@python.org> parents: 15669 diff changeset	106 else:
679d50705e06 SF Patch #103227 by mwh: make code.py appreciate softspace Guido van Rossum <guido@python.org> parents: 15669 diff changeset	107 if softspace(sys.stdout, 0):
679d50705e06 SF Patch #103227 by mwh: make code.py appreciate softspace Guido van Rossum <guido@python.org> parents: 15669 diff changeset	108 print
9137 0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	109
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	110 def showsyntaxerror(self, filename=None):
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	111 """Display the syntax error that just occurred.
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	112
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	113 This doesn't display a stack trace because there isn't one.
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	114
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	115 If a filename is given, it is stuffed in the exception instead
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	116 of what was there before (because Python's parser always uses
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	117 "<string>" when reading from a string).
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	118
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	119 The output is written by self.write(), below.
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	120
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	121 """
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	122 type, value, sys.last_traceback = sys.exc_info()
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	123 sys.last_type = type
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	124 sys.last_value = value
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	125 if filename and type is SyntaxError:
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	126 # Work hard to stuff the correct filename in the exception
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	127 try:
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	128 msg, (dummy_filename, lineno, offset, line) = value
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	129 except:
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	130 # Not the format we expect; leave it alone
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	131 pass
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	132 else:
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	133 # Stuff in the right filename
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	134 try:
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	135 # Assume SyntaxError is a class exception
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	136 value = SyntaxError(msg, (filename, lineno, offset, line))
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	137 except:
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	138 # If that failed, assume SyntaxError is a string
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	139 value = msg, (filename, lineno, offset, line)
17666 12c80b570d00 InteractiveInterpreter.showsyntaxerror(): Fred Drake <fdrake@acm.org> parents: 16495 diff changeset	140 sys.last_value = value
9137 0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	141 list = traceback.format_exception_only(type, value)
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	142 map(self.write, list)
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	143
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	144 def showtraceback(self):
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	145 """Display the exception that just occurred.
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	146
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	147 We remove the first stack item because it is our own code.
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	148
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	149 The output is written by self.write(), below.
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	150
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	151 """
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	152 try:
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	153 type, value, tb = sys.exc_info()
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	154 sys.last_type = type
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	155 sys.last_value = value
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	156 sys.last_traceback = tb
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	157 tblist = traceback.extract_tb(tb)
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	158 del tblist[:1]
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	159 list = traceback.format_list(tblist)
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	160 if list:
15669 5c65e676f299 Make Traceback header conform to new traceback ("innermost last" -> Guido van Rossum <guido@python.org> parents: 11870 diff changeset	161 list.insert(0, "Traceback (most recent call last):\n")
9137 0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	162 list[len(list):] = traceback.format_exception_only(type, value)
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	163 finally:
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	164 tblist = tb = None
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	165 map(self.write, list)
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	166
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	167 def write(self, data):
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	168 """Write a string.
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	169
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	170 The base implementation writes to sys.stderr; a subclass may
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	171 replace this with a different implementation.
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	172
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	173 """
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	174 sys.stderr.write(data)
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	175
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	176
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	177 class InteractiveConsole(InteractiveInterpreter):
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	178 """Closely emulate the behavior of the interactive Python interpreter.
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	179
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	180 This class builds on InteractiveInterpreter and adds prompting
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	181 using the familiar sys.ps1 and sys.ps2, and input buffering.
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	182
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	183 """
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	184
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	185 def __init__(self, locals=None, filename="<console>"):
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	186 """Constructor.
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	187
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	188 The optional locals argument will be passed to the
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	189 InteractiveInterpreter base class.
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	190
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	191 The optional filename argument should specify the (file)name
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	192 of the input stream; it will show up in tracebacks.
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	193
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	194 """
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	195 InteractiveInterpreter.__init__(self, locals)
8543 e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	196 self.filename = filename
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	197 self.resetbuffer()
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	198
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	199 def resetbuffer(self):
9137 0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	200 """Reset the input buffer."""
8543 e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	201 self.buffer = []
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	202
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	203 def interact(self, banner=None):
9137 0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	204 """Closely emulate the interactive Python console.
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	205
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	206 The optional banner argument specify the banner to print
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	207 before the first interaction; by default it prints a banner
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	208 similar to the one printed by the real Python interpreter,
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	209 followed by the current class name in parentheses (so as not
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	210 to confuse this with the real interpreter -- since it's so
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	211 close!).
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	212
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	213 """
8543 e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	214 try:
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	215 sys.ps1
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	216 except AttributeError:
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	217 sys.ps1 = ">>> "
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	218 try:
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	219 sys.ps2
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	220 except AttributeError:
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	221 sys.ps2 = "... "
15863 71b19d36aafa Make the copyright message the same as for the "real" interpreter. Guido van Rossum <guido@python.org> parents: 15847 diff changeset	222 cprt = 'Type "copyright", "credits" or "license" for more information.'
8543 e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	223 if banner is None:
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	224 self.write("Python %s on %s\n%s\n(%s)\n" %
15863 71b19d36aafa Make the copyright message the same as for the "real" interpreter. Guido van Rossum <guido@python.org> parents: 15847 diff changeset	225 (sys.version, sys.platform, cprt,
8543 e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	226 self.__class__.__name__))
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	227 else:
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	228 self.write("%s\n" % str(banner))
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	229 more = 0
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	230 while 1:
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	231 try:
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	232 if more:
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	233 prompt = sys.ps2
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	234 else:
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	235 prompt = sys.ps1
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	236 try:
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	237 line = self.raw_input(prompt)
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	238 except EOFError:
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	239 self.write("\n")
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	240 break
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	241 else:
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	242 more = self.push(line)
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	243 except KeyboardInterrupt:
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	244 self.write("\nKeyboardInterrupt\n")
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	245 self.resetbuffer()
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	246 more = 0
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	247
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	248 def push(self, line):
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	249 """Push a line to the interpreter.
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	250
9137 0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	251 The line should not have a trailing newline; it may have
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	252 internal newlines. The line is appended to a buffer and the
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	253 interpreter's runsource() method is called with the
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	254 concatenated contents of the buffer as source. If this
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	255 indicates that the command was executed or invalid, the buffer
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	256 is reset; otherwise, the command is incomplete, and the buffer
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	257 is left as it was after the line was appended. The return
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	258 value is 1 if more input is required, 0 if the line was dealt
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	259 with in some way (this is the same as runsource()).
8543 e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	260
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	261 """
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	262 self.buffer.append(line)
16495 69f162dcd8b4 String method conversion. Eric S. Raymond <esr@thyrsus.com> parents: 16070 diff changeset	263 source = "\n".join(self.buffer)
9137 0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	264 more = self.runsource(source, self.filename)
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	265 if not more:
8543 e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	266 self.resetbuffer()
9137 0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	267 return more
8543 e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	268
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	269 def raw_input(self, prompt=""):
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	270 """Write a prompt and read a line.
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	271
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	272 The returned line does not include the trailing newline.
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	273 When the user enters the EOF key sequence, EOFError is raised.
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	274
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	275 The base implementation uses the built-in function
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	276 raw_input(); a subclass may replace this with a different
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	277 implementation.
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	278
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	279 """
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	280 return raw_input(prompt)
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	281
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	282
9405 3886165dba42 Rename 'locals' argument to top-level interact() function to 'local' Guido van Rossum <guido@python.org> parents: 9137 diff changeset	283 def interact(banner=None, readfunc=None, local=None):
8543 e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	284 """Closely emulate the interactive Python interpreter.
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	285
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	286 This is a backwards compatible interface to the InteractiveConsole
9137 0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	287 class. When readfunc is not specified, it attempts to import the
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	288 readline module to enable GNU readline if it is available.
8543 e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	289
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	290 Arguments (all optional, all default to None):
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	291
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	292 banner -- passed to InteractiveConsole.interact()
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	293 readfunc -- if not None, replaces InteractiveConsole.raw_input()
9405 3886165dba42 Rename 'locals' argument to top-level interact() function to 'local' Guido van Rossum <guido@python.org> parents: 9137 diff changeset	294 local -- passed to InteractiveInterpreter.__init__()
8543 e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	295
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	296 """
9405 3886165dba42 Rename 'locals' argument to top-level interact() function to 'local' Guido van Rossum <guido@python.org> parents: 9137 diff changeset	297 console = InteractiveConsole(local)
8543 e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	298 if readfunc is not None:
e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	299 console.raw_input = readfunc
9137 0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	300 else:
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	301 try:
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	302 import readline
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	303 except:
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	304 pass
8543 e951bf2d7d93 Subsume the interact() function in a class. This should make it Guido van Rossum <guido@python.org> parents: 7755 diff changeset	305 console.interact(banner)
9137 0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	306
0329d419e506 Reworked it quite a bit. There are now two classes: a base class, Guido van Rossum <guido@python.org> parents: 8543 diff changeset	307
6423 644484e1a37b Add Jeff Epler's interact() function. Note that it is broken. Guido van Rossum <guido@python.org> parents: 5835 diff changeset	308 if __name__ == '__main__':
644484e1a37b Add Jeff Epler's interact() function. Note that it is broken. Guido van Rossum <guido@python.org> parents: 5835 diff changeset	309 interact()

Mercurial > cpython-lru_cache-weakref

annotate Lib/code.py @ 19283:b865cd5c1925 legacy-trunk