[Python-ideas] gofmt for Python: standardized styling as a language feature

[Eli Bendersky]

On Tue, Mar 17, 2015 at 8:29 PM, Eli Bendersky <eliben at gmail.com> wrote:

> Interesting coincidence :-)
>
> We (at Google) are just on the verge of releasing an open-source tool for
> auto-formatting of Python code. It should be posted to Github within the
> next few days or weeks, under a permissive license (Apache 2.0 or something
> similar).
>
> The tool works like gofmt and clang-format (the C++/JS version provided as
> part of the Clang toolchain) - it only acts on whitespace and performs
> re-formatting of code (PEP-8 oriented for Python but it's configurable). It
> does not rename variables/classes/functions to conform to any particular
> style. The algorithm is based on clang-format, and lib2to3 is used for the
> parsing side - so it's very solid. We use it on Python 2 code internally,
> but Python 3 support is also planned and should be easy.
>
> We intend to keep actively developing the tool in the open and will be
> happy to accept test cases, fixes and patches in general.
>
> So stay tuned!
>
>
https://github.com/google/yapf

Eli





















> P.S. I'm also against such a tool being a part of the Python distribution,
> at least in the near term. A tool/library has to first prove itself outside
> of core for a while, and only when/if it proves to be widely used and
> stable, an incorporation into core should be considered. The stdlib is big
> as it is, and any additional code is a burden on all core developers.
> Incorporation into the stdlib also imposes a very slow pace of
> development/release on said library/tool, and hence should only be
> considered when it's been extremely stable for a while.
>
> Eli
>
>
>
> On Tue, Mar 17, 2015 at 7:17 PM, Nicholas Chammas <
> nicholas.chammas at gmail.com> wrote:
>
>> First class means it's like a language feature. Actually, in my case I am
>> using "first-class" and "included with the language" synonymously. Not sure
>> if that's appropriate terminology, but that's what I mean.
>>
>> To explain by rough analogy, Twisted is to asyncio what autopep8 would be
>> to a first-class auto-styler. (I say "rough" because I understand that
>> Twisted is not supposed to be replaced entirely by asyncio, but I hope my
>> point is clear.)
>>
>> Nick
>>
>> On Tue, Mar 17, 2015 at 9:58 PM Ethan Furman <ethan at stoneleaf.us> wrote:
>>
>>> On 03/17/2015 06:54 PM, Nicholas Chammas wrote:
>>>
>>> > I am not proposing putting |autopep8| in the standard library. I am
>>> proposing that an auto-styler be included with
>>> > Python as a first-class utility. The emphasis here is on /included/
>>> and /first-class/.
>>>
>>> Perhaps you could explain what you mean by a /first-class/ utility?
>>>
>>> --
>>> ~Ethan~
>>>
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