SF patch 560794 (Greg Chapman): deepcopy can't handle custom metaclasses.
SF patch 560794 (Greg Chapman): deepcopy can't handle custom
metaclasses.

This is essentially the same problem as that reported in bug 494904
for pickle: deepcopy should treat instances of custom metaclasses the
same way it treats instances of type 'type'.

Bugfix candidate.

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator