[issue18540] imaplib.IMAP4() ends with "Name or service not known" on Fedora 18

[Milan Oberkirch]

Milan Oberkirch added the comment:

I shouldn't criticize my own patches if I want to have them committed:
Here comes the final and perfect patch for this issue ;)
(I only rephrased the comment for the test to make the intuition clear.)

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Added file: http://bugs.python.org/file40347/imaplib_interpret_empty_string_as_None-final.patch

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<http://bugs.python.org/issue18540>
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