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Re: A desperate lunge for on-topic-ness

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Hans Mulder <hansmu@xs4all.nl> writes:

> On 18/10/12 08:31:51, Steven D'Aprano wrote:
> > some_variable = spam('x') + ham(
> >                     some_longer_variables, here_and_here, 
> >                     and_here_also)

The indentation level for continuation lines shouldn't be dependent on
the content of the first line of the statement. That leads to either
pointless fiddling with the continuation lines when one line changes; or
to a large indentation which is also pointless because it no longer
matches the first line.

> I would spell that as:
>
> some_variable = spam('x') + ham(
>     some_longer_variables,
>     here_and_here,
>     and_here_also,
> )

I dislike the indentation of the final line, because it pops out like
the start of a new statement. Either::

    some_variable = spam('x') + ham(
            some_longer_variables,
            here_and_here,
            and_here_also)
    do_next_thing()

Or::

    some_variable = spam('x') + ham(
            some_longer_variables,
            here_and_here,
            and_here_also,
            )
    do_next_thing()

depending on whether I deem it likely that new items will later be added
within the parentheses.

> > I know PEP 8 says I should drop the final round bracket to the next
> > line, but I don't normally like that.
>
> I normally put the final bracket on the next line, where it is
> very visible.  Compare:
>
> if looks_like_it_might_be_spam(
>     some_longer_variables,
>     here_and_here, and_here_also):
>     logger.notice("might be spam")
>     move_to_spam_folder(some_longer_variables)
>     update_spam_statistics(here_and_here)

To avoid this problem, I advocate 8-column indentation for continuation lines
to contrast with the 4-column indentation for a code block::

    if looks_like_it_might_be_spam(
            some_longer_variables,
            here_and_here, and_here_also):
        logger.notice("might be spam")
        move_to_spam_folder(some_longer_variables)
        update_spam_statistics(here_and_here)

>
> vs.
>
> if looks_like_it_might_be_spam(
>     some_longer_variables,
>     here_and_here,
>     and_here_also,
> ):
>     logger.notice("might be spam")
>     move_to_spam_folder(some_longer_variables)
>     update_spam_statistics(here_and_here)
>
> Which one would you say is more readable?

Mine :-)

-- 
 \       “When I get new information, I change my position. What, sir, |
  `\             do you do with new information?” —John Maynard Keynes |
_o__)                                                                  |
Ben Finney

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Thread

A desperate lunge for on-topic-ness Zero Piraeus <schesis@gmail.com> - 2012-10-18 02:06 -0400
  Re: A desperate lunge for on-topic-ness Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-10-18 06:31 +0000
    Re: A desperate lunge for on-topic-ness Hans Mulder <hansmu@xs4all.nl> - 2012-10-18 11:07 +0200
      Re: A desperate lunge for on-topic-ness wxjmfauth@gmail.com - 2012-10-18 02:33 -0700
        Re: A desperate lunge for on-topic-ness Tim Chase <python.list@tim.thechases.com> - 2012-10-18 06:05 -0500
      Re: A desperate lunge for on-topic-ness Chris Angelico <rosuav@gmail.com> - 2012-10-18 21:01 +1100
      RE: A desperate lunge for on-topic-ness "Prasad, Ramit" <ramit.prasad@jpmorgan.com> - 2012-10-18 18:42 +0000
      Re: A desperate lunge for on-topic-ness Ben Finney <ben+python@benfinney.id.au> - 2012-10-19 11:33 +1100
        Re: A desperate lunge for on-topic-ness rusi <rustompmody@gmail.com> - 2012-10-18 20:35 -0700
          Re: A desperate lunge for on-topic-ness Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-10-19 04:08 +0000
    Re: A desperate lunge for on-topic-ness Zero Piraeus <schesis@gmail.com> - 2012-10-18 06:31 -0400
  Re: A desperate lunge for on-topic-ness rusi <rustompmody@gmail.com> - 2012-10-17 23:55 -0700
  Re: A desperate lunge for on-topic-ness Paul Rubin <no.email@nospam.invalid> - 2012-10-17 23:56 -0700
  Re: A desperate lunge for on-topic-ness Grant Edwards <invalid@invalid.invalid> - 2012-10-18 13:16 +0000
    Re: A desperate lunge for on-topic-ness Ben Finney <ben+python@benfinney.id.au> - 2012-10-19 11:39 +1100
  Re: A desperate lunge for on-topic-ness Den <patentsvnc@gmail.com> - 2012-10-18 08:55 -0700
    Re: A desperate lunge for on-topic-ness Neil Cerutti <neilc@norwich.edu> - 2012-10-18 16:13 +0000
      Re: A desperate lunge for on-topic-ness Chris Angelico <rosuav@gmail.com> - 2012-10-19 03:21 +1100
      RE: A desperate lunge for on-topic-ness "Prasad, Ramit" <ramit.prasad@jpmorgan.com> - 2012-10-18 18:51 +0000
    RE: A desperate lunge for on-topic-ness "Prasad, Ramit" <ramit.prasad@jpmorgan.com> - 2012-10-18 18:50 +0000
    Re: A desperate lunge for on-topic-ness Zero Piraeus <schesis@gmail.com> - 2012-10-18 17:36 -0400
      Re: A desperate lunge for on-topic-ness Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-10-19 01:50 +0000
  Re: A desperate lunge for on-topic-ness Den <patentsvnc@gmail.com> - 2012-10-18 08:55 -0700
    Re: A desperate lunge for on-topic-ness Grant Edwards <invalid@invalid.invalid> - 2012-10-18 17:44 +0000
      Re: A desperate lunge for on-topic-ness Gene Heskett <gheskett@wdtv.com> - 2012-10-18 18:53 -0400
  Re: A desperate lunge for on-topic-ness Krzysztof Voss <shobbo@gmail.com> - 2012-10-19 15:16 -0700
  Re: A desperate lunge for on-topic-ness Krzysztof Voss <shobbo@gmail.com> - 2012-10-19 15:16 -0700

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