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author	Pieter Eendebak <pieter.eendebak@gmail.com>
	Tue, 28 Jan 2025 21:55:45 +0000 (22:55 +0100)
committer	GitHub <noreply@github.com>
	Tue, 28 Jan 2025 21:55:45 +0000 (21:55 +0000)
commit	64c417dee5594c882beac03e7d2942ca05b5c204
tree	2452eedac3d0f2bab6455dbd41ad4cb8617b5d87	tree \| snapshot
parent	a4459c34ea4270311f0b7e22f1203af5ccc39875	commit \| diff

gh-112075: Remove critical section in dict.get (gh-129336)

The `dict.get` implementation uses `_Py_dict_lookup_threadsafe`, which is
thread-safe, so we remove the critical section from the argument clinic.

Add a test for concurrent dict get and set operations.

Lib/test/test_free_threading/test_dict.py		diff \| blob \| blame \| history
Objects/clinic/dictobject.c.h		diff \| blob \| blame \| history
Objects/dictobject.c		diff \| blob \| blame \| history

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