[Import-SIG] PEP 420 issue: extend_path

Nick Coghlan ncoghlan at gmail.com
Fri May 11 02:09:41 CEST 2012

How is starting an accumulator and returning it unconditionally *more*
complicated than "if you don't find any portions return None".

"Why should I do that, what happens if I just return my empty container

"Oh, that's the same as returning None."

It makes no sense. We *have* to handle the empty iterator case regardless.
Allowing None *as well* is just plain redundant.

Sent from my phone, thus the relative brevity :)
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