[issue3753] bytearray incompatible with y#

[Joannah Nanjekye]

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


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pull_requests: +14590
pull_request: https://github.com/python/cpython/pull/14679

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue3753>
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