R. David Murray rdmurray@bitdance.com added the comment:
Yes, that's the way it works (and is intended to work, for performance reasons). The documentation on this could be improved...while it does say globals must be a dict and that locals can be any mapping object, it does it in a sentence that is a bit confusing in this context, and it doesn't make it clear that it has to be a "real" dict, not a subclass. (I wouldn't be surprised if that sentence was written back when you couldn't subclass dict.)
---------- assignee: -> docs@python components: +Documentation nosy: +docs@python, r.david.murray versions: +Python 3.7 -Python 3.5
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