A small question about PEP 8

Ethan Furman ethan at stoneleaf.us
Mon Jul 8 20:32:12 EDT 2013


On 07/08/2013 03:39 AM, Joshua Landau wrote:
> On 8 July 2013 00:32, Xue Fuqiao <xfq.free at gmail.com> wrote:
>> Hi all,
>>
>> (English is not my native language; please excuse typing errors.)
>>
>> I'm a Python newbie and just started reading PEP 8.  PEP says:
>>
>> -----------------------------------------------------------------------
>> |The closing brace/bracket/parenthesis on multi-line constructs may
>> |either line up under the last item of the list, as in:
>> |
>> |my_list = [
>> |    1, 2, 3,
>> |    4, 5, 6,
>> |    ]
>> |result = some_function_that_takes_arguments(
>> |    'a', 'b', 'c',
>> |    'd', 'e', 'f',
>> |    )
>> -----------------------------------------------------------------------
>>
>> I think the last item in my_list/result is 6/'f', respectively.  So why
>> doesn't the bracket/paren line up _under_ the last item?  ISTM the code
>> isn't consistent with the description.
>>
>> I have searched the archive of c.l.p and the web, but nothing helped.
>> Can anyone point me in the right direction?
>
> You will grow to be a wonderful pedant. What it means is that the
> indentation will match the last one. Imagine:
>
> """
> a_wonderful_set_of_things = {
>      bannanas_made_of_apples,
>      chocolate_covered_horns,
>      doors_that_slide,
>      china_but_on_the_moon,
>      buffalo_with_windy_hair,
>      not_missing_an_end_brace
> """¹
>
> Now, there are several places you can put the end brace. You can (be a
> massive fool and) put it after the last item:
>
> """
> a_wonderful_set_of_things = {
>      ...,
>      not_missing_an_end_brace}
> """
>
> You can also (be a fool and) put it at the same *indentation*:
>
> """
> a_wonderful_set_of_things = {
>      ...,
>      not_missing_an_end_brace
>      }
> """

Not only a fool but a crazy fool!  That next-to-last line should have a comma!

--
~Ethan~



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