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| author | Andrew M. Kuchling <amk@amk.ca> | 2006-08-09 13:03:41 (GMT) |
|---|---|---|
| committer | Andrew M. Kuchling <amk@amk.ca> | 2006-08-09 13:03:41 (GMT) |
| commit | b71366081fef1620de3633804d38d17551eb49f5 (patch) | |
| tree | 5e2197a3389987ef7330b578d50cd19e46c0abd7 /Doc | |
| parent | ab2f8f7bd556c16a2b30aa8ec05d4c9d8c50d311 (diff) | |
| download | cpython-b71366081fef1620de3633804d38d17551eb49f5.zip cpython-b71366081fef1620de3633804d38d17551eb49f5.tar.gz cpython-b71366081fef1620de3633804d38d17551eb49f5.tar.bz2 | |
[Bug #1536021] Mention __hash__ change
Diffstat (limited to 'Doc')
| -rw-r--r-- | Doc/whatsnew/whatsnew25.tex | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/Doc/whatsnew/whatsnew25.tex b/Doc/whatsnew/whatsnew25.tex index 132f3a2..1e73633 100644 --- a/Doc/whatsnew/whatsnew25.tex +++ b/Doc/whatsnew/whatsnew25.tex @@ -3,7 +3,6 @@ % $Id$ % Fix XXX comments -% Count up the patches and bugs \title{What's New in Python 2.5} \release{0.9} @@ -1100,10 +1099,10 @@ print d[3], d[4] # Prints 0, 0 \item Both 8-bit and Unicode strings have new \method{partition(sep)} and \method{rpartition(sep)} methods that simplify a common use case. + The \method{find(S)} method is often used to get an index which is then used to slice the string and obtain the pieces that are before and after the separator. - \method{partition(sep)} condenses this pattern into a single method call that returns a 3-tuple containing the substring before the separator, the separator itself, and the @@ -1165,6 +1164,15 @@ returned by the iterator is true; otherwise it will return all of the values returned by the iterator evaluate as true. (Suggested by Guido van~Rossum, and implemented by Raymond Hettinger.) +\item The result of a class's \method{__hash__()} method can now +be either a long integer or a regular integer. If a long integer is +returned, the hash of that value is taken. In earlier versions the +hash value was required to be a regular integer, but in 2.5 the +\function{id()} built-in was changed to always return non-negative +numbers, and users often seem to use \code{id(self)} in +\method{__hash__()} methods (though this is discouraged). +% Bug #1536021 + \item ASCII is now the default encoding for modules. It's now a syntax error if a module contains string literals with 8-bit characters but doesn't have an encoding declaration. In Python 2.4 |