[issue36144] Dictionary union. (PEP 584)

[Curtis Bucher]

Change by Curtis Bucher <cpbucher5 at gmail.com>:


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nosy: +curtisbucher
nosy_count: 11.0 -> 12.0
pull_requests: +18189
pull_request: https://github.com/python/cpython/pull/18832

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue36144>
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