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Title: bpo-41796: Call _PyAST_Fini() earlier to fix a leak by vstinner · Pull Request #23131 · python/cpython · GitHub

Open Graph Title: bpo-41796: Call _PyAST_Fini() earlier to fix a leak by vstinner · Pull Request #23131 · python/cpython

X Title: bpo-41796: Call _PyAST_Fini() earlier to fix a leak by vstinner · Pull Request #23131 · python/cpython

Description: Call _PyAST_Fini() on all interpreters, not only on the main interpreter. Also, call it ealier to fix a reference leak. Python types contain a reference to themselves in in their PyTypeObject.tp_mro member. _PyAST_Fini() must called before the last GC collection to destroy AST types. _PyInterpreterState_Clear() now calls _PyAST_Fini(). It now also calls _PyWarnings_Fini() on subinterpeters, not only on the main interpreter. Add an assertion in AST init_types() to ensure that the _ast module is no longer used after _PyAST_Fini() has been called. https://bugs.python.org/issue41796

Open Graph Description: Call _PyAST_Fini() on all interpreters, not only on the main interpreter. Also, call it ealier to fix a reference leak. Python types contain a reference to themselves in in their PyTypeObject.tp_mr...

X Description: Call _PyAST_Fini() on all interpreters, not only on the main interpreter. Also, call it ealier to fix a reference leak. Python types contain a reference to themselves in in their PyTypeObject.tp_mr...

Opengraph URL: https://github.com/python/cpython/pull/23131

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