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Groups > comp.lang.python > #108340

Re: pylint woes

From Jussi Piitulainen <jussi.piitulainen@helsinki.fi>
Newsgroups comp.lang.python
Subject Re: pylint woes
Date 2016-05-08 08:50 +0300
Organization A noiseless patient Spider
Message-ID <lf54ma9cd4b.fsf@ling.helsinki.fi> (permalink)
References (2 earlier) <mailman.457.1462640479.32212.python-list@python.org> <ngm3qs$73r$1@dont-email.me> <1462673665.770286.601202553.071593AE@webmail.messagingengine.com> <mailman.491.1462673669.32212.python-list@python.org> <ngma4u$kgb$1@dont-email.me>

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DFS writes:

> The lists I actually use are:
>
> for j in range(len(nms)):
>      cSQL = "INSERT INTO ADDRESSES VALUES (?,?,?,?,?)"
>      vals = nms[j],street[j],city[j],state[j],zipcd[j]
>
>
> The enumerated version would be:
>
> ziplists = zip(nms,street,city,state,zipcd)
> for nm,street,city,state,zipcd in ziplists:
>      cSQL = "INSERT INTO ADDRESSES VALUES (?,?,?,?,?)"
>      vals = nm,street,city,state,zipcd
>
>
> I guess the enumeration() is a little nicer to look at.  Why do you
> think it's more maintainable?

The following variations avoid the naming of the result of zip at all,
and also save a line or two, depending on what you actually do in the
loop, without introducing overly long lines. Judge for yourself.

You don't need to name the individual components, if you only actually
use vals:

for vals in zip(nms,street,city,state,zipcd):
    cSQL = "INSERT INTO ADDRESSES VALUES (?,?,?,?,?)"


Or you can opt to name the tuple and its components the other way
around:

for vals in zip(nms,street,city,state,zipcd):
    nm,street,city,state,zipcd = vals
    cSQL = "INSERT INTO ADDRESSES VALUES (?,?,?,?,?)"

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Thread

pylint woes DFS <nospam@dfs.com> - 2016-05-07 12:51 -0400
  Re: pylint woes Chris Angelico <rosuav@gmail.com> - 2016-05-08 03:01 +1000
    Re: pylint woes DFS <nospam@dfs.com> - 2016-05-07 21:16 -0400
      Re: pylint woes Chris Angelico <rosuav@gmail.com> - 2016-05-08 11:36 +1000
        Re: pylint woes DFS <nospam@dfs.com> - 2016-05-07 22:15 -0400
          Re: pylint woes Chris Angelico <rosuav@gmail.com> - 2016-05-08 12:50 +1000
            Re: pylint woes DFS <nospam@dfs.com> - 2016-05-10 18:36 -0400
              Re: pylint woes MRAB <python@mrabarnett.plus.com> - 2016-05-11 02:02 +0100
      Re: pylint woes Stephen Hansen <me+python@ixokai.io> - 2016-05-07 19:14 -0700
        Re: pylint woes DFS <nospam@dfs.com> - 2016-05-07 23:04 -0400
          Re: pylint woes Stephen Hansen <me+python@ixokai.io> - 2016-05-07 20:46 -0700
            Re: pylint woes DFS <nospam@dfs.com> - 2016-05-08 10:26 -0400
          Re: pylint woes Jussi Piitulainen <jussi.piitulainen@helsinki.fi> - 2016-05-08 08:50 +0300
            Re: pylint woes DFS <nospam@dfs.com> - 2016-05-08 10:25 -0400
              Re: pylint woes Chris Angelico <rosuav@gmail.com> - 2016-05-09 00:36 +1000
                Re: pylint woes DFS <nospam@dfs.com> - 2016-05-08 11:06 -0400
                Re: pylint woes Stephen Hansen <me+python@ixokai.io> - 2016-05-08 08:15 -0700
                Re: pylint woes Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2016-05-09 13:17 +1200
                Re: pylint woes Chris Angelico <rosuav@gmail.com> - 2016-05-09 12:18 +1000
                Re: pylint woes DFS <nospam@dfs.com> - 2016-05-08 22:58 -0400
                Re: pylint woes Chris Angelico <rosuav@gmail.com> - 2016-05-09 01:15 +1000
                Re: pylint woes DFS <nospam@dfs.com> - 2016-05-08 17:06 -0400
              Re: pylint woes Stephen Hansen <me+python@ixokai.io> - 2016-05-08 08:11 -0700
              Re: pylint woes Steven D'Aprano <steve@pearwood.info> - 2016-05-09 01:51 +1000
                Re: pylint woes DFS <nospam@dfs.com> - 2016-05-08 17:04 -0400
                Re: pylint woes Steven D'Aprano <steve@pearwood.info> - 2016-05-09 13:09 +1000
      Re: pylint woes MRAB <python@mrabarnett.plus.com> - 2016-05-08 03:21 +0100
      Re: pylint woes Steven D'Aprano <steve@pearwood.info> - 2016-05-08 21:36 +1000
        Re: pylint woes DFS <nospam@dfs.com> - 2016-05-08 17:24 -0400
          Re: pylint woes Joel Goldstick <joel.goldstick@gmail.com> - 2016-05-08 17:39 -0400
          Re: pylint woes Steven D'Aprano <steve@pearwood.info> - 2016-05-09 13:46 +1000
  Re: pylint woes Michael Selik <michael.selik@gmail.com> - 2016-05-07 18:42 +0000
  Re: pylint woes Peter Pearson <pkpearson@nowhere.invalid> - 2016-05-07 18:43 +0000
    Re: pylint woes DFS <nospam@dfs.com> - 2016-05-08 17:05 -0400
  Re: pylint woes Christopher Reimer <christopher_reimer@icloud.com> - 2016-05-07 11:52 -0700
    Re: pylint woes DFS <nospam@dfs.com> - 2016-05-07 23:38 -0400
      Re: pylint woes Chris Angelico <rosuav@gmail.com> - 2016-05-08 13:56 +1000
      Re: pylint woes Peter Otten <__peter__@web.de> - 2016-05-08 16:19 +0200
  Re: pylint woes Stephen Hansen <me+python@ixokai.io> - 2016-05-07 12:21 -0700
  Re: pylint woes Stephen Hansen <me@ixokai.io> - 2016-05-07 12:23 -0700
  Re: pylint woes Terry Reedy <tjreedy@udel.edu> - 2016-05-07 15:40 -0400
    Re: pylint woes DFS <nospam@dfs.com> - 2016-05-07 23:28 -0400
      Re: pylint woes Chris Angelico <rosuav@gmail.com> - 2016-05-08 13:51 +1000
        Re: pylint woes DFS <nospam@dfs.com> - 2016-05-08 00:40 -0400
          Re: pylint woes Chris Angelico <rosuav@gmail.com> - 2016-05-08 14:55 +1000
      Re: pylint woes Stephen Hansen <me+python@ixokai.io> - 2016-05-07 20:55 -0700
      Re: pylint woes Ian Kelly <ian.g.kelly@gmail.com> - 2016-05-07 23:09 -0600
      Re: pylint woes Peter Otten <__peter__@web.de> - 2016-05-08 16:12 +0200
  Re: pylint woes Christopher Reimer <christopher_reimer@icloud.com> - 2016-05-07 12:43 -0700
  Re: pylint woes Ray Cote <rgacote@appropriatesolutions.com> - 2016-05-07 15:52 -0400
  Re: pylint woes Christopher Reimer <christopher_reimer@icloud.com> - 2016-05-07 13:20 -0700
  Re: pylint woes Chris Angelico <rosuav@gmail.com> - 2016-05-08 07:56 +1000
  Re: pylint woes Terry Reedy <tjreedy@udel.edu> - 2016-05-07 21:44 -0400
  Re: pylint woes Steven D'Aprano <steve@pearwood.info> - 2016-05-08 13:25 +1000
    Re: pylint woes DFS <nospam@dfs.com> - 2016-05-08 00:10 -0400
      Re: pylint woes Chris Angelico <rosuav@gmail.com> - 2016-05-08 14:21 +1000
      Re: pylint woes "D'Arcy J.M. Cain" <darcy@VybeNetworks.com> - 2016-05-08 08:50 -0400
      Re: pylint woes Chris Angelico <rosuav@gmail.com> - 2016-05-08 23:01 +1000
        Re: pylint woes Larry Hudson <orgnut@yahoo.com> - 2016-05-08 13:45 -0700
          Re: pylint woes Chris Angelico <rosuav@gmail.com> - 2016-05-09 08:07 +1000
            Re: pylint woes Larry Hudson <orgnut@yahoo.com> - 2016-05-08 18:28 -0700
        Re: pylint woes Dan Sommers <dan@tombstonezero.net> - 2016-05-08 20:49 +0000
          Re: pylint woes Chris Angelico <rosuav@gmail.com> - 2016-05-09 08:10 +1000
      Re: pylint woes Steven D'Aprano <steve@pearwood.info> - 2016-05-09 03:25 +1000
        Re: pylint woes DFS <nospam@dfs.com> - 2016-05-08 17:16 -0400
          Re: pylint woes Stephen Hansen <me+python@ixokai.io> - 2016-05-08 14:38 -0700
            Re: pylint woes DFS <nospam@dfs.com> - 2016-05-08 17:46 -0400
              Re: pylint woes Stephen Hansen <me+python@ixokai.io> - 2016-05-08 15:05 -0700
                Re: pylint woes DFS <nospam@dfs.com> - 2016-05-08 18:24 -0400

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