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Mon Jan 9 13:03:06 EST 2017 · http://mail.python.org/pipermail/python-dev/2017-January/147137.html

Interesting to see that others have the same problem.

We also had this kind of "over-protective" behavior. As far as I know, 
our devs stopped doing it as it feels cumbersome.

Another argument for this is: when using PyCharm, this IDE will suggest 
imports from those modules which aren't the original ones. So, you might 
import from a third-party module. Over time, however, people learn to 
pick the "right" module to import from.

Cheers,
Sven

On 09.01.2017 12:42, Steve Holden wrote:
> One of my developers recently submitted a pull request incuding a 
> number of lines like
>
> import os as _os
>
> When I asked him why he suggested a) this would improve encapsulation, 
> and b) the practice was supported in the stdlib. Further investigation 
> reveals that some modules (e.g. argparse, crypt, difflib, random) do 
> use this technique, but it is far from universal.
>
> So I thought it would be useful to get input from current devs about 
> the value of this practice, since to me it seems somewhat 
> anti-pythonic. What advantages does it confer?
>
> regards
> Steve Holden
>
>
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[Python-Dev] Imports with underscores