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| author | Georg Brandl <georg@python.org> | 2009-10-21 07:17:48 +0000 |
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| committer | Georg Brandl <georg@python.org> | 2009-10-21 07:17:48 +0000 |
| commit | ff8c1e5aceb7737d424610dd1adeed773b84b8db (patch) | |
| tree | 76d59c0661a96ffa809543f7968f7fd5aeaebe02 /Doc/library/weakref.rst | |
| parent | 6a354d7e08f183e000c0b7cbfd60224e8db16b2b (diff) | |
| download | cpython-git-ff8c1e5aceb7737d424610dd1adeed773b84b8db.tar.gz | |
Merged revisions 75580 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
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r75580 | georg.brandl | 2009-10-21 09:15:59 +0200 (Mi, 21 Okt 2009) | 1 line
#7170: fix explanation about non-weakrefable builtin types.
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Diffstat (limited to 'Doc/library/weakref.rst')
| -rw-r--r-- | Doc/library/weakref.rst | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Doc/library/weakref.rst b/Doc/library/weakref.rst index dcc5bf3a6b..06a432d047 100644 --- a/Doc/library/weakref.rst +++ b/Doc/library/weakref.rst @@ -72,6 +72,10 @@ support weak references but can add support through subclassing:: obj = Dict(red=1, green=2, blue=3) # this object is weak referenceable +Other built-in types such as :class:`tuple` and :class:`int` do not support +weak references even when subclassed (those types implemented as a +:ctype:`PyVarObject`). + Extension types can easily be made to support weak references; see :ref:`weakref-support`. |