Stowage/cpython
2
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-11-04 07:31:38 +00:00
Code Issues Projects Releases Packages Wiki Activity
44027 commits 6 branches 635 tags 3.9 GiB
Commit graph

333 commits

Author SHA1 Message Date
Gregory P. Smith
9e5d1327f8 Issue #7242: On Solaris 9 and earlier calling os.fork() from within a 
thread could raise an incorrect RuntimeError about not holding the import
lock.  The import lock is now reinitialized after fork.
 2010-03-01 01:22:39 +00:00
Alexandre Vassalotti
b646547bb4 Issue #2333: Backport set and dict comprehensions syntax. 2010-01-11 22:36:12 +00:00
Alexandre Vassalotti
ee936a2130 Issue #2335: Backport set literals syntax from Python 3.x. 2010-01-09 23:35:54 +00:00
Thomas Wouters
c4dcb3801e Fix issue #1590864, multiple threads and fork() can cause deadlocks, by 
acquiring the import lock around fork() calls. This prevents other threads
from having that lock while the fork happens, and is the recommended way of
dealing with such issues. There are two other locks we care about, the GIL
and the Thread Local Storage lock. The GIL is obviously held when calling
Python functions like os.fork(), and the TLS lock is explicitly reallocated
instead, while also deleting now-orphaned TLS data.

This only fixes calls to os.fork(), not extension modules or embedding
programs calling C's fork() directly. Solving that requires a new set of API
functions, and possibly a rewrite of the Python/thread_*.c mess. Add a
warning explaining the problem to the documentation in the mean time.

This also changes behaviour a little on AIX. Before, AIX (but only AIX) was
getting the import lock reallocated, seemingly to avoid this very same
problem. This is not the right approach, because the import lock is a
re-entrant one, and reallocating would do the wrong thing when forking while
holding the import lock.

Will backport to 2.6, minus the tiny AIX behaviour change.
 2009-09-16 19:55:54 +00:00
Amaury Forgeot d'Arc
982b2fa32d Better name a variable: 'buf' seems to imply a mutable buffer. 2009-07-25 16:22:06 +00:00
R. David Murray
3310a10a68 Update issue 6070 patch to match the patch that was actually tested 
on Windows.
 2009-07-07 09:54:16 +00:00
R. David Murray
23a736a4f0 Issue 6070: when creating a compiled file, after copying the mode bits, on 
posix zap the execute bit in case it was set on the .py file, since the
compiled files are not directly executable on posix.  Patch by Marco N.
 2009-07-07 01:06:13 +00:00
Benjamin Peterson
1880d8b823 add a SETUP_WITH opcode 
It speeds up the with statement and correctly looks up the special
methods involved.
 2009-05-25 13:13:44 +00:00
Brett Cannon
238cedcd63 Fix two issues introduced by issue #71031 by changing the signature of 
PyImport_AppendInittab() to take a const char *.
 2009-04-02 03:34:53 +00:00
Brett Cannon
c4f90ebea7 PyImport_AppendInittab() took a char * as a first argument even though that 
string was stored beyond the life of the call. Changed the signature to be
const char * to help make this point.

Closes issue #1419652.
 2009-04-02 03:17:39 +00:00
Jeffrey Yasskin
68d6852006 Backport r69961 to trunk, replacing JUMP_IF_{TRUE,FALSE} with 
POP_JUMP_IF_{TRUE,FALSE} and JUMP_IF_{TRUE,FALSE}_OR_POP. This avoids executing
a POP_TOP on each conditional and sometimes allows the peephole optimizer to
skip a JUMP_ABSOLUTE entirely. It speeds up list comprehensions significantly.
 2009-02-28 19:03:21 +00:00
Kristján Valur Jónsson
3b2a6b819d Issue 3677: Fix import from UNC paths on Windows. 2009-01-09 20:10:59 +00:00
Antoine Pitrou
e96d4ea4e2 Issue #1180193: When importing a module from a .pyc (or .pyo) file with 
an existing .py counterpart, override the co_filename attributes of all
code objects if the original filename is obsolete (which can happen if the
file has been renamed, moved, or if it is accessed through different paths).
Patch by Ziga Seilnacht and Jean-Paul Calderone.
 2009-01-06 18:10:47 +00:00
Martin v. Löwis
0fa10b3cd5 Issue #4817: Remove unused function PyOS_GetLastModificationTime. 2009-01-03 17:19:26 +00:00
Antoine Pitrou
d0c3515bc5 Issue #2183: Simplify and optimize bytecode for list comprehensions. 2008-12-17 00:38:28 +00:00
Benjamin Peterson
17f03ca962 Fix compilation when --without-threads is given #3683 
Reviewer: Georg Brandl, Benjamin Peterson
 2008-09-01 14:18:30 +00:00
Brett Cannon
3aa2a49ec9 Add imp.reload(). This to help with transitioning to 3.0 the reload() built-in 
has been removed there.
 2008-08-06 22:28:09 +00:00
Nick Coghlan
b028f50911 Fix issue 3221 by emitting a RuntimeWarning instead of raising SystemError when the parent module can't be found during an absolute import (likely due to non-PEP 361 aware code which sets a module level __package__ attribute) 2008-07-13 14:52:36 +00:00
Gregory P. Smith
dd96db63f6 This reverts r63675 based on the discussion in this thread: 
http://mail.python.org/pipermail/python-dev/2008-June/079988.html

Python 2.6 should stick with PyString_* in its codebase.  The PyBytes_* names
in the spirit of 3.0 are available via a #define only.  See the email thread.
 2008-06-09 04:58:54 +00:00
Christian Heimes
593daf545b Renamed PyString to PyBytes 2008-05-26 12:51:38 +00:00
Christian Heimes
61e4590ec9 Build bots are working again - removing the hack 2008-03-27 10:35:52 +00:00
Christian Heimes
81caa790b6 Quick 'n dirty hack: Increase the magic by 2 to force a rebuild of pyc/pyo files on the build bots 2008-03-27 09:02:33 +00:00
Christian Heimes
7f23d86107 Initialize PyCompilerFlags cf_flags with 0 2008-03-26 22:51:58 +00:00
Christian Heimes
3c60833e1e Patch #2477: Added from __future__ import unicode_literals 
The new PyParser_*Ex() functions are based on Neal's suggestion and initial patch. The new __future__ feature makes all '' and r'' unicode strings. b'' and br'' stay (byte) strings.
 2008-03-26 22:01:37 +00:00
Nick Coghlan
7af53be66f Speed up with statements by storing the __exit__ method on the stack instead of in a temp variable (bumps the magic number for pyc files) 2008-03-07 14:13:28 +00:00
Christian Heimes
5e8e6d2454 MS Windows doesn't have mode_t but stat.st_mode is defined as unsigned short. 2008-02-23 23:59:45 +00:00
Christian Heimes
4034685a58 Issue #2051 and patch from Alexander Belopolsky: 
Permission for pyc and pyo files are inherited from the py file.
 2008-02-23 17:52:07 +00:00
Christian Heimes
0d9244332b Fixed some references leaks in sys. 2008-01-30 17:21:22 +00:00
Christian Heimes
3403f1589d Fixed #1776. __import__() no longer imports modules by file name 2008-01-09 19:56:33 +00:00
Georg Brandl
aed6c66aa8 patch #1668: clarify envvar docs; rename THREADDEBUG to PYTHONTHREADDEBUG. 2008-01-07 17:25:53 +00:00
Georg Brandl
2da0fceba7 Patch #602345 by Neal Norwitz and me: add -B option and PYTHONDONTWRITEBYTECODE envvar to skip writing bytecode. 2008-01-07 17:09:35 +00:00
Christian Heimes
000a074c95 Modified PyImport_Import and PyImport_ImportModule to always use absolute imports by calling __import__ with an explicit level of 0 
Added a new API function PyImport_ImportModuleNoBlock. It solves the problem with dead locks when mixing threads and imports
 2008-01-03 22:16:32 +00:00
Raymond Hettinger
effde12f5f Speed-up dictionary constructor by about 10%. 
New opcode, STORE_MAP saves the compiler from awkward stack manipulations
and specializes for dicts using PyDict_SetItem instead of PyObject_SetItem.

Old disassembly:
              0 BUILD_MAP                0
              3 DUP_TOP
              4 LOAD_CONST               1 (1)
              7 ROT_TWO
              8 LOAD_CONST               2 ('x')
             11 STORE_SUBSCR
             12 DUP_TOP
             13 LOAD_CONST               3 (2)
             16 ROT_TWO
             17 LOAD_CONST               4 ('y')
             20 STORE_SUBSCR

New disassembly:
              0 BUILD_MAP                0
              3 LOAD_CONST               1 (1)
              6 LOAD_CONST               2 ('x')
              9 STORE_MAP
             10 LOAD_CONST               3 (2)
             13 LOAD_CONST               4 ('y')
             16 STORE_MAP
 2007-12-18 18:26:18 +00:00
Nick Coghlan
ef01d822aa Implement PEP 366 2007-12-03 12:55:17 +00:00
Nick Coghlan
327a39b047 Patch #1739468: Directories and zipfiles containing __main__.py are now executable 2007-11-18 11:56:28 +00:00
Christian Heimes
004c1c1562 Backport of Guido's review of my patch. 2007-11-07 18:30:22 +00:00
Christian Heimes
cea681be19 Backported fix for bug #1392 from py3k branch r58903. 2007-11-07 17:50:54 +00:00
Georg Brandl
add36e5fdf Second half of #1752175: #ifdef out references to PyImport_DynLoadFiletab if HAVE_DYNAMIC_LOADING is not defined. 2007-08-23 18:08:06 +00:00
Georg Brandl
d7e9f608c3 Revert accidental checkins from last commit. 2007-08-21 06:03:43 +00:00
Georg Brandl
fdca6d8599 Demand version 2.5.1 since 2.5 has a bug with codecs.open context managers. 2007-08-21 06:01:18 +00:00
Martin v. Löwis
6819210b9e PEP 3123: Provide forward compatibility with Python 3.0, while keeping 
backwards compatibility. Add Py_Refcnt, Py_Type, Py_Size, and
PyVarObject_HEAD_INIT.
 2007-07-21 06:55:02 +00:00
Neal Norwitz
2fca81cc4c Fix indentation (whitespace only). 2007-05-30 04:53:41 +00:00
Kristján Valur Jónsson
67387fb4aa Make pythoncore compile cleanly with VisualStudio 2005. Used an explicit typecast to get a 64 bit integer, and undefined the Yield macro that conflicts with winbase.h 2007-04-25 00:17:39 +00:00
Collin Winter
47c52a8b60 Inline PyImport_GetModulesReloading(). 2007-03-13 23:02:15 +00:00
Neal Norwitz
75c7c80ee5 Fix some style nits: 
* lines too long
  * wrong indentation
  * space after a function name
  * wrong function name in error string
  * simplifying some logic

Also add an error check to PyDict_SetItemString.
 2007-03-13 05:31:38 +00:00
Collin Winter
276887b16d Bug #742342: make Python stop segfaulting on infinitely-recursive reload()s. Fixed by patch #922167. 
Will backport.
 2007-03-12 16:11:39 +00:00
Georg Brandl
7478096148 Typos. 2007-03-10 07:38:14 +00:00
Neal Norwitz
cbeb687c68 Update the peephole optimizer to remove more dead code (jumps after returns) 
and inline jumps to returns.
 2006-10-14 21:33:38 +00:00
Brett Cannon
5a9aa4f31c Fix minor typo in a comment. 2006-10-03 21:58:55 +00:00
Brett Cannon
94b69f6ba3 Very minor grammatical fix in a comment. 2006-09-28 22:10:14 +00:00