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On 8/25/15, 10:58, "Clay Gerrard" <clay.gerrard at gmail.com> wrote:

>
>
>On Tue, Aug 25, 2015 at 8:45 AM, Kevin L. Mitchell
><kevin.mitchell at rackspace.com> wrote:
>
>On Mon, 2015-08-24 at 22:53 -0700, Clay Gerrard wrote:
>> So, I know that hacking has H301 (one import per line) - but say maybe
>> you wanted to import *more* that one thing on a line (there's some
>> exceptions right?  sqlalchemy migrations or something?)
>
>There's never a need to import more than one thing per line given the
>rule to only import modules, not objects.  While that is not currently
>enforced by hacking, it is a strong style guideline.  (Exceptions for
>things like sqlalchemy do exist, of course.)
>
>
>
>
>Thank you for echoing my premise - H301 exists, but there are exceptions,
>so...
>
>
>On Mon, 2015-08-24 at 22:53 -0700, Clay Gerrard wrote:
>
>Anyway - I'm sure there could be a pep8 plugin rule that enforces use of
>parenthesis for multi line imports instead backslash line breaks [1] -
>but would that be something that hacking would want to carry (since
> *most* of the time H301 would kick in first?) - or if not; is there a
>way to plug it into pep8 outside of hacking without having to install
>some random one-off extension for this one rule separately?
>
>
>
>-Clay

So, I'm fairly certain that if it isn't on by default, that pep8 has a
check for lines that end in \. It will apply to import statements. That
said, by turning off the hacking checks around imports you lose some of
the consistency. So if you do that, consider flake8-import-order as a
plugin. It allows for multiple (non-module) imports on a line but insists
they be ordered appropriately and such.

Cheers,
Ian
Flake8 core developer, maintainer
Hacking core reviewer
pep8, pyflakes, mccabe, etc. maintainer/core developer/whatever