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Raymond Hettinger aa241e0149 Checkin Tim's fix to an error discussed on python-dev. 
Also, add a testcase.

Formerly, the list_extend() code used several local variables to remember
its state across iterations.  Since an iteration could call arbitrary
Python code, it was possible for the list state to be changed.  The new
code uses dynamic structure references instead of C locals.  So, they
are always up-to-date.

After list_resize() is called, its size has been updated but the new
cells are filled with NULLs.  These needed to be filled before arbitrary
iteration code was called; otherwise, that code could attempt to modify
a list that was in a semi-invalid state.  The solution was to change
the ob->size field back to a value reflecting the actual number of valid
cells.
 		2004-09-26 19:24:20 +00:00
..
.cvsignore Ignore a bunch of generated files. 2000-05-02 18:34:30 +00:00
abstract.c SF bug #1030557: PyMapping_Check crashes when argument is NULL 2004-09-19 06:00:15 +00:00
boolobject.c - bool() called without arguments now returns False rather than 2003-04-19 18:15:10 +00:00
bufferobject.c Ensure negative offsets cannot be passed to buffer(). When composing 2004-09-24 19:17:26 +00:00
cellobject.c Use new GC API. 2001-08-29 23:54:21 +00:00
classobject.c A static swapped_op[] array was defined in 3 different C files, & I think 2004-09-23 02:39:37 +00:00
cobject.c Make CObjects mutable. Fixes #477441. 2003-10-19 18:30:01 +00:00
complexobject.c Fix repr for negative imaginary part. Fixes #1013908. 2004-08-22 21:09:15 +00:00
descrobject.c Use PyDict_Contains() instead of PySequence_Contains(). 2003-12-13 11:58:56 +00:00
dictnotes.txt Fix typos and add some elaborations 2004-03-15 15:52:22 +00:00
dictobject.c Moved SunPro warning suppression into pyport.h and out of individual 2004-07-15 15:54:05 +00:00
enumobject.c SF patch #1020188: Use Py_CLEAR where necessary to avoid crashes 2004-09-01 07:02:44 +00:00
fileobject.c dump HAVE_FOPENRF stuff - obsolete 2004-06-11 04:49:03 +00:00
floatobject.c float_richcompare(): Use the new Py_IS_NAN macro to ensure that, on 2004-09-23 19:22:41 +00:00
frameobject.c SF Bug #215126: Over restricted type checking on eval() function 2004-07-02 06:41:07 +00:00
funcobject.c This is my patch 2004-08-12 18:12:44 +00:00
genobject.c SF patch #1020188: Use Py_CLEAR where necessary to avoid crashes 2004-09-01 07:02:44 +00:00
intobject.c Stop producing or using OverflowWarning. PEP 237 thought this would 2004-08-25 02:14:08 +00:00
iterobject.c SF patch #1020188: Use Py_CLEAR where necessary to avoid crashes 2004-09-01 07:02:44 +00:00
listobject.c Checkin Tim's fix to an error discussed on python-dev. 2004-09-26 19:24:20 +00:00
listsort.txt Fixed new typos, added a little info about ~sort versus "hint"s. 2002-08-10 07:04:01 +00:00
longobject.c Patch #1024670: Support int objects in PyLong_AsUnsignedLong[Mask]. 2004-09-20 06:17:46 +00:00
methodobject.c * Added a new method flag, METH_COEXIST. 2003-12-13 11:26:12 +00:00
moduleobject.c Make the word "module" appear in the error string for calling the 2004-09-14 17:19:09 +00:00
object.c Remove 'extern' declaration for _Py_SwappedOp. 2004-09-25 01:37:24 +00:00
obmalloc.c whoops, I wanted that commented out by default, will add doc to Misc 2004-06-06 19:21:34 +00:00
rangeobject.c Bug 1003935: xrange overflows 2004-08-08 07:17:39 +00:00
setobject.c Moved SunPro warning suppression into pyport.h and out of individual 2004-07-15 15:54:05 +00:00
sliceobject.c SF bug #800796: Difference between hash() and __hash__() 2003-09-05 14:27:30 +00:00
stringobject.c SF Patch #1007087: Return new string for single subclass joins (Bug #1001011) 2004-08-23 23:23:54 +00:00
structseq.c Removed all uses of the out-of-favor __safe_for_unpickling__ magic 2003-02-01 02:16:37 +00:00
tupleobject.c Add a final permutation step to the tuple hash function. 2004-06-10 18:42:15 +00:00
typeobject.c A static swapped_op[] array was defined in 3 different C files, & I think 2004-09-23 02:39:37 +00:00
unicodectype.c SF #989185: Drop unicode.iswide() and unicode.width() and add 2004-08-04 07:38:35 +00:00
unicodeobject.c Initialize sep and seplen to suppress warning from gcc. 2004-09-16 03:28:13 +00:00
unicodetype_db.h SF #989185: Drop unicode.iswide() and unicode.width() and add 2004-08-04 07:38:35 +00:00
weakrefobject.c Be more careful about maintaining the invariants; it was actually 2004-08-03 14:47:25 +00:00