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GH-116738: document thread-safety of bisect #136555

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Merged
merged 7 commits into from
Jul 30, 2025
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GH-116738: document thread-safety of bisect #136555

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5e4d174
GH-116738: document thread-safety of bisect
nascheme Jul 9, 2025
4b7f113
Add free-threaded test for bisect.
nascheme Jul 11, 2025
e405cf8
Adjust indent of "note" block.
nascheme Jul 14, 2025
def0f47
Merge 'origin/main' into gh-116738-bisect-threadsafe-doc
nascheme Jul 23, 2025
87a90f3
Use `threading_helper.run_concurrently`.
nascheme Jul 23, 2025
b74a790
Remove unused imports from test.
nascheme Jul 30, 2025
229a531
Merge 'origin/main' into gh-116738-bisect-threadsafe-doc
nascheme Jul 30, 2025
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GH-116738: document thread-safety of bisect
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@nascheme
nascheme committed Jul 11, 2025
commit 5e4d174a460ad3d9a1713a5cc7901f6bbbbbcd3d
10 changes: 10 additions & 0 deletions Doc/library/bisect.rst
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Expand Up @@ -24,6 +24,16 @@ method to determine whether a value has been found. Instead, the
functions only call the :meth:`~object.__lt__` method and will return an insertion
point between values in an array.

.. note::

The functions in this module are not thread-safe. If multiple threads
concurrently use :mod:`bisect` functions on the same sequence, this
may result in undefined behaviour. Likewise, if the provided sequence
is mutated by a different thread while a :mod:`bisect` function
is operating on it, the result is undefined. For example, using
:py:func:`~bisect.insort_left` on the same list from multiple threads
may result in the list becoming unsorted.

.. _bisect functions:

The following functions are provided:
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