[issue26804] Prioritize lowercase proxy variables in urllib.request

[Hans-Peter Jansen]

Hans-Peter Jansen added the comment:

* blatant error fixed
* one test case added

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Added file: http://bugs.python.org/file42582/python-urllib-prefer-lowercase-proxies-v6.diff

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue26804>
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