[issue23802] patch: __deepcopy__ memo dict argument usage

[Joannah Nanjekye]

Change by Joannah Nanjekye <nanjekyejoannah at gmail.com>:


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nosy: +nanjekyejoannah
nosy_count: 3.0 -> 4.0
pull_requests: +20476
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/21326

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue23802>
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