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r75246 | benjamin.peterson | 2009-10-04 15:32:25 -0500 (Sun, 04 Oct 2009) | 29 lines
Merged revisions 74841 via svnmerge from
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r74841 | thomas.wouters | 2009-09-16 14:55:54 -0500 (Wed, 16 Sep 2009) | 23 lines
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.
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r73782 | benjamin.peterson | 2009-07-02 16:44:01 -0500 (Thu, 02 Jul 2009) | 1 line
the old CO_FUTURE flags can't be commented out
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r73783 | benjamin.peterson | 2009-07-02 16:54:36 -0500 (Thu, 02 Jul 2009) | 1 line
a little more fiddling to make flags like 2.x
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r73784 | benjamin.peterson | 2009-07-02 16:55:39 -0500 (Thu, 02 Jul 2009) | 9 lines
Merged revisions 73781 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
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r73781 | benjamin.peterson | 2009-07-02 16:38:36 -0500 (Thu, 02 Jul 2009) | 1 line
test that compile() accepts the future flag
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r72924 | georg.brandl | 2009-05-25 23:02:56 +0200 (Mo, 25 Mai 2009) | 6 lines
Allow multiple context managers in one with statement, as proposed
in http://codereview.appspot.com/53094 and accepted by Guido.
The construct is transformed into multiple With AST nodes so that
there should be no problems with the semantics.
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r72698 | hirokazu.yamamoto | 2009-05-17 11:52:09 +0900 | 1 line
Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
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r72699 | hirokazu.yamamoto | 2009-05-17 11:58:36 +0900 | 1 line
Added NEWS for r72698.
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r72283 | antoine.pitrou | 2009-05-04 20:32:32 +0200 (lun., 04 mai 2009) | 4 lines
Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal sequences.
Patch by Nick Barnes and Victor Stinner.
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r72284 | antoine.pitrou | 2009-05-04 20:32:50 +0200 (lun., 04 mai 2009) | 3 lines
Add Nick Barnes to ACKS.
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r72040 | eric.smith | 2009-04-27 15:04:37 -0400 (Mon, 27 Apr 2009) | 1 line
Issue #5793: rationalize isdigit / isalpha / tolower, etc. Will port to py3k. Should fix Windows buildbot errors.
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problems for binary distributions of Python in situations
where the build machine has SSE2 but the target machine
does not.
Therefore, don't enable SSE2 instructions automatically on x86.
Addresses the float -> string conversion, using David Gay's code which
was added in Mark Dickinson's checkin r71663.
Also addresses these, which are intertwined with the short repr
changes:
- Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'
- Issue #5515: 'n' formatting with commas no longer works poorly
with leading zeros.
- PEP 378 Format Specifier for Thousands Separator: implemented
for floats.
- incorporate and adapt David Gay's dtoa and strtod
into the Python core
- on platforms where we can use Gay's code (almost
all!), repr(float) is based on the shortest
sequence of decimal digits that rounds correctly.
- add sys.float_repr_style attribute to indicate
whether we're using Gay's code or not
- add autoconf magic to detect and enable SSE2
instructions on x86/gcc
- slight change to repr and str: repr switches
to exponential notation at 1e16 instead of
1e17, str switches at 1e11 instead of 1e12
Benjamin Peterson
Mark Dickinson
Georg Brandl
Amaury Forgeot d'Arc
Martin v. Löwis
Hirokazu Yamamoto
Eric Smith
Antoine Pitrou
Ronald Oussoren
Matthias Klose