Lines Matching refs:weakref

1 :mod:`weakref` --- Weak references
4 .. module:: weakref
12 **Source code:** :source:`Lib/weakref.py`
16 The :mod:`weakref` module allows the Python programmer to create :dfn:`weak
40 the :mod:`weakref` module are an alternative, using weak references to construct
64 exposed by the :mod:`weakref` module for the benefit of advanced uses.
89 :ref:`weakref-support`.
98    weakref object is still alive, the callback will be called when the object is
125       weakref.  If there is no callback or if the referent of the weakref is
219       >>> r = weakref.ref(c.method)
221       >>> r = weakref.WeakMethod(c.method)
336    >>> import weakref
341    >>> r = weakref.ref(o)
381    import weakref
383    class ExtendedRef(weakref.ref):
415    import weakref
417    _id2obj_dict = weakref.WeakValueDictionary()
437     >>> import weakref
442     >>> weakref.finalize(kenny, print, "You killed Kenny!")  #doctest:+ELLIPSIS
455     >>> f = weakref.finalize(obj, callback, 1, 2, z=3)
468     >>> f = weakref.finalize(obj, callback, 1, 2, z=3)
485    >>> weakref.finalize(obj, print, "obj dead or exiting")
537             self._finalizer = weakref.finalize(self, shutil.rmtree, self.name)
550 The other advantage of weakref based finalizers is that they can be used to
554     import weakref, sys
557     weakref.finalize(sys.modules[__name__], unloading_module)