[issue18533] Avoid error from repr() of recursive dictview

[R. David Murray]

R. David Murray added the comment:

I'm in favor of treating this a bugfix.  It is a bug for repr to raise a recursion error, IMO.

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nosy: +r.david.murray

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue18533>
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