[Python-Dev] PyWeakref_GetObject() borrows its reference from... whom?

Larry Hastings larry at hastings.org
Mon Oct 10 04:17:33 EDT 2016


The documentation for PyWeakref_GetObject() states:

    Return value: Borrowed reference.

    Return the referenced object from a weak reference, ref. If the
    referent is no longer live, returns Py_None.

Given that the weakref doesn't have a reference to the object--merely a 
weak reference, different thing--whose reference is it borrowing?

FWIW, yes, this is playing merry hell with the Gilectomy.  If there are 
two threads, and one calls PyWeakref_GetObject(obj), and there's only 
one reference to obj, and the other thread blows it away... now what?  
It's my contention that this API is simply untenable under the 
Gilectomy, and that it needs to change to returning a new (strong) 
reference.


//arry/
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