[issue38891] ShareableList read and write access is O(N), should be O(1)

[Antoine Pitrou]

Antoine Pitrou <solipsis at pitrou.net> added the comment:


New changeset c8f1715283ec51822fb37a702bf253cbac1af276 by Thomas Krennwallner in branch 'master':
bpo-38891: avoid quadratic item access performance of ShareableList (GH-18996)
https://github.com/python/cpython/commit/c8f1715283ec51822fb37a702bf253cbac1af276


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nosy: +pitrou

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<https://bugs.python.org/issue38891>
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