Serhiy Storchaka added the comment:

Thank you for your review Eric. I considered passing NULL, but as Antti said, 
it is already used for space separated concatenation. PyUnicode_New(0, 0) is 
the obvious way to get an empty string, and I think it is fast enough. If this 
affects performance we can add additional microoptimization later.

----------
resolution:  -> fixed
stage:  -> resolved
status: open -> closed

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue27078>
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