[issue3122] sys.getsizeof() gives an AttributeError for _sre objects.

[Robert Schuppenies]

Robert Schuppenies <okkotonushi at googlemail.com> added the comment:

You are right, the rule is to not include referenced objects.
But, and this has been rather informal up to now, I handled transparently
cached information as something that is added to the memory used by an
object (see unicode.defenc). The same I applied to
MatchObject.regs. The rational being that the user cannot know wether
the match positions are cached or not.

What do you think?

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