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Title: GH-141148: ensure tasks/threads get fresh copy of decimal.Context by nascheme · Pull Request #146482 · python/cpython · GitHub

Open Graph Title: GH-141148: ensure tasks/threads get fresh copy of decimal.Context by nascheme · Pull Request #146482 · python/cpython

X Title: GH-141148: ensure tasks/threads get fresh copy of decimal.Context by nascheme · Pull Request #146482 · python/cpython

Description: The Python programming language. Contribute to python/cpython development by creating an account on GitHub.

Open Graph Description: Ensure that decimal.getcontext() returns a per-task copy of the decimal.Context so that mutations are isolated between asyncio tasks and threads when sys.flags.thread_inherit_context is set. This c...

X Description: Ensure that decimal.getcontext() returns a per-task copy of the decimal.Context so that mutations are isolated between asyncio tasks and threads when sys.flags.thread_inherit_context is set. This c...

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og:image:altEnsure that decimal.getcontext() returns a per-task copy of the decimal.Context so that mutations are isolated between asyncio tasks and threads when sys.flags.thread_inherit_context is set. This c...
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data races in decimal module with global context #141148https://github.com/python/cpython/issues/141148
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Add PyContextVar_GetChanged() method.https://github.com/python/cpython/pull/146482/commits/0a20e79268eafd2c3d3121e912ec8f165946f750
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Use ContextVar.get_changed() for decimal context.https://github.com/python/cpython/pull/146482/commits/b33469eb37f0746916353b539b36c2a03ea14eca
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Mark unit test that needs working threads.https://github.com/python/cpython/pull/146482/commits/74482e303587929b75143a6d4283a83073c88ff5
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_decimal: mpd_context_t::status/traps mutated non-atomically leading to data race #149142 https://github.com/python/cpython/issues/149142
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