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document the performance fix to builtin_sum().

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Alex Martelli 2003-10-25 13:02:57 +00:00
parent a2777d3a55
commit dd6664514f
1 changed files with 6 additions and 0 deletions
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@ -23,6 +23,9 @@ Core and builtins
starting with Py2.3 are guaranteed to be stable (the relative order of starting with Py2.3 are guaranteed to be stable (the relative order of
records with equal keys is unchanged). records with equal keys is unchanged).
- Added a list.copysort() method that returns a copy of the sorted list
while leaving the original intact.
- Added test whether wchar_t is signed or not. A signed wchar_t is not - Added test whether wchar_t is signed or not. A signed wchar_t is not
usable as internal unicode type base for Py_UNICODE since the usable as internal unicode type base for Py_UNICODE since the
unicode implementation assumes an unsigned type. unicode implementation assumes an unsigned type.
@ -44,6 +47,9 @@ Core and builtins
- obj.__contains__() now returns True/False instead of 1/0. SF patch - obj.__contains__() now returns True/False instead of 1/0. SF patch
820195. 820195.
- builtin_sum() now uses PyNumber_InPlaceAdd, fixing a previous
performance bug for sum(list_of_lists) and similar cases.
Extension modules Extension modules
----------------- -----------------