[issue39590] collections.deque.__contains__ and .count should hold strong references.

[Raymond Hettinger]

Raymond Hettinger <raymond.hettinger at gmail.com> added the comment:


New changeset c6dedde160a9fce5d049e860f586ad8f93aec822 by sweeneyde in branch 'master':
bpo-39590: make deque.__contains__ and deque.count hold strong references (GH-18421)
https://github.com/python/cpython/commit/c6dedde160a9fce5d049e860f586ad8f93aec822


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nosy: +rhettinger

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<https://bugs.python.org/issue39590>
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