[issue40217] The garbage collector doesn't take in account that objects of heap allocated types hold a strong reference to their type

[Pablo Galindo Salgado]

Pablo Galindo Salgado <pablog...@gmail.com> added the comment:

In https://github.com/python/cpython/pull/19414 I have attached a proof of 
concept of a wrapper for tp_traverse that only affects types created by 
PyType_FromSpec that will call Py_VISIT(Py_TYPE(self)) and then the user 
function.

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