[issue11572] bring Lib/copy.py to 100% coverage

[Éric Araujo]

Éric Araujo <merwok at netwok.org> added the comment:

Some code is removed by your patch, for example a check that prevented an error for builds that don’t include complex.  If this type of builds still exist, the code should be compatible.

Conversely, the code mentions unicode in some places, but it’s gone now.

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nosy: +eric.araujo

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