[issue19331] Revise PEP 8 recommendation for class names

[Nick Coghlan]

Nick Coghlan added the comment:

collections.defaultdict, collections.deque, array.array and many of the builtins suggest the rule isn't that simple (although other examples like Decimal, Fraction, OrderedDict, Counter and ChainMap suggest my guideline is also wrong).

The main thing I want is to be able to provide and document attributes on contextlib.suppress and contextlib.redirect_stdio without violating PEP 8.

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<http://bugs.python.org/issue19331>
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