[issue26098] PEP 510: Specialize functions with guards

[STINNER Victor]

STINNER Victor added the comment:

Patch version 3:

* guards are now tracked by the garbage collector. That's a very important requirements to not change the Python semantics at exit, when a guard keeps a strong reference to the global namespace:

https://mail.python.org/pipermail/python-dev/2016-January/142792.html

* add more tests: call specialize() with invalid types, set __code__

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Added file: http://bugs.python.org/file41661/specialize-3.patch

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