STINNER Victor <vstin...@python.org> added the comment:
More recent copy.copy() change: commit 5c1c3b4f197c57952760be37d77d73669284a607
of bpo-11480:
Issue #11480: Fixed copy.copy to work with classes with custom metaclasses.
+ try:
+ issc = issubclass(cls, type)
+ except TypeError: # cls is not a class
+ issc = False
+ if issc:
+ # treat it as a regular class:
+ return _copy_immutable(x)
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue47143>
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