[issue19274] make zipfile.PyZipFile more usable

[Georg Brandl]

Georg Brandl added the comment:

Looks fine but -- as a new feature -- is 3.4 only, and needs docs and tests.

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nosy: +georg.brandl
stage:  -> patch review
versions: +Python 3.4 -Python 2.7

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue19274>
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