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Richard Oudkerk 2012-08-17 15:05:09 +01:00
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Doc/library/weakref.rst
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@ -53,12 +53,6 @@ they need -- it's not usually necessary to create your own weak references
directly. The low-level machinery used by the weak dictionary implementations
is exposed by the :mod:`weakref` module for the benefit of advanced uses.
.. note::
Weak references to an object are cleared before the object's :meth:`__del__`
is called, to ensure that the weak reference callback (if any) finds the
object still alive.
Not all objects can be weakly referenced; those objects which can include class
instances, functions written in Python (but not in C), instance methods, sets,
frozensets, some :term:`file objects <file object>`, :term:`generator`\s, type