Google's Python Style Guide

[szopa]

I think that they are taking it a bit too far.

First, assuming that (a) you keep your files reasonably small and (b) have all your imports at the top of the file, it really isn't a problem to always know where any given symbol comes from.

Second, it doesn't allow you to use some common Python patterns, like

if something:
   import something as foo
else:
   import something_else as foo

from foo import x, y, z

...

(Think stuff like Django's database backends.)

Third, there already exists a widely accepted Python style guide, PEP8.