svn+ssh://pythondev@svn.python.org/python/trunk
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r81820 | benjamin.peterson | 2010-06-07 17:23:23 -0500 (Mon, 07 Jun 2010) | 1 line
correctly overflow when indexes are too large
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svn+ssh://pythondev@svn.python.org/python/trunk
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r71548 | eric.smith | 2009-04-12 20:29:50 -0400 (Sun, 12 Apr 2009) | 1 line
Fixed incorrect object passed into format_float_internal(). This was resulting in a conversion being done twice.
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svn+ssh://pythondev@svn.python.org/python/trunk
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r69806 | eric.smith | 2009-02-20 09:02:36 -0500 (Fri, 20 Feb 2009) | 1 line
Issue #5247: Improve error message when unknown format codes are used when using str.format() with str, unicode, long, int, and float arguments.
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svn+ssh://pythondev@svn.python.org/python/trunk
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r68589 | antoine.pitrou | 2009-01-14 00:13:52 +0100 (mer., 14 janv. 2009) | 5 lines
Issue #4935: The overflow checking code in the expandtabs() method common
to str, bytes and bytearray could be optimized away by the compiler, letting
the interpreter segfault instead of raising an error.
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* crashes on memory allocation failure found with failmalloc
* memory leaks found with valgrind
* compiler warnings in opt mode which would lead to invalid memory reads
* problem using wrong name in decimal module reported by pychecker
Update the valgrind suppressions file with new leaks that are small/one-time
leaks we don't care about (ie, they are too hard to fix).
TBR=barry
TESTED=./python -E -tt ./Lib/test/regrtest.py -uall (both debug and opt modes)
in opt mode:
valgrind -q --leak-check=yes --suppressions=Misc/valgrind-python.supp \
./python -E -tt ./Lib/test/regrtest.py -uall,-bsddb,-compiler \
-x test_logging test_ssl test_multiprocessing
valgrind -q --leak-check=yes --suppressions=Misc/valgrind-python.supp \
./python -E -tt ./Lib/test/regrtest.py test_multiprocessing
for i in `seq 1 4000` ; do
LD_PRELOAD=~/local/lib/libfailmalloc.so FAILMALLOC_INTERVAL=$i \
./python -c pass
done
At least some of these fixes should probably be backported to 2.5.
Optimization of str.format() for cases with str, unicode, int, long,
and float arguments. This gives about 30% speed improvement for the
simplest (but most common) cases. This patch skips the __format__
dispatch, and also avoids creating an object to hold the format_spec.
Unfortunately there's a complication in 2.6 with int, long, and float
because they always expect str format_specs. So in the unicode
version of this optimization, just check for unicode objects. int,
float, long, and str can be added later, if needed.
Adds 'n' as a format specifier for integers, to mirror the same
specifier which is already available for floats. 'n' is the same as
'd', but inserts the current locale-specific thousands grouping.
I added this as a stringlib function, but it's only used by str type,
not unicode. This is because of an implementation detail in
unicode.format(), which does its own str->unicode conversion. But the
unicode version will be needed in 3.0, and it may be needed by other
code eventually in 2.6 (maybe decimal?), so I left it as a stringlib
implementation. As long as the unicode version isn't instantiated,
there's no overhead for this.
