[issue22797] urllib.request.urlopen documentation falsely guarantees that a URLError will be raised on errors

[Joshua Chin]

Changes by Joshua Chin <joshuarchin at gmail.com>:


Added file: http://bugs.python.org/file37131/urlopen_doc.patch

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22797>
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