[issue1918] weak references are removed before __del__ is called.

[Christian Heimes]

Christian Heimes added the comment:

The behavior is documented in the C code. I don't know how it is
described in the docs.

Objects/typeobject.c around line 820 says:

/* If we added a weaklist, we clear it.  Do this *before* calling
   the finalizer (__del__), clearing slots, or clearing the instance
   dict. */

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nosy: +tiran
priority:  -> normal
resolution:  -> wont fix
status: open -> pending

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<http://bugs.python.org/issue1918>
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