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Re: Code style query: multiple assignments in if/elif tree

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On Tue, Apr 1, 2014 at 1:45 AM, Rustom Mody <rustompmody@gmail.com> wrote:

> On Tue, Apr 1, 2014 at 3:26 PM, Steven D'Aprano  wrote:
>
> > Haskell has nifty pattern-matching syntax for this that looks quite close
> > to the mathematical hybrid function syntax, but in Python, we're limited
> > to explicitly using an if. If I were coding this, and I'm not, I'd wrap
> > it in a function. One advantage of a state variable rather than a
> > continuous time function is that we can do this:
> > def accel(state):
> >     return {NO_BRAKING: 0.0,
> >             LOW_BRAKING: 0.2,
> >             MID_BRAKING: 0.425,
> >             HIGH_BRAKING: 0.85}[state]
>
> Neat
> I would put the dict in a variable. And those _BRAKINGs are GALLing me!
>
> breaking = {NO:0.0, LOW:0.2, MID:0.425:, HIGH:0.85}
> def accel(state): return breaking[state]
>
> <Irony>
> In using Haskell, I often wish for dicts especially python's nifty
> dict-literals
> </Irony>
>
>
This still omits the viscosity(+-) of the enclosed, or exposed
track/environmental variables of the system in which the objects traveling.

http://www.synlube.com/viscosit.htm

> --
>


> https://mail.python.org/mailman/listinfo/python-list
>



-- 
Best Regards,
David Hutto
*CEO:* *http://www.hitwebdevelopment.com <http://www.hitwebdevelopment.com>*

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Thread

Code style query: multiple assignments in if/elif tree Chris Angelico <rosuav@gmail.com> - 2014-04-01 01:33 +1100
  Re: Code style query: multiple assignments in if/elif tree Marko Rauhamaa <marko@pacujo.net> - 2014-03-31 18:40 +0300
    Re: Code style query: multiple assignments in if/elif tree Chris Angelico <rosuav@gmail.com> - 2014-04-01 03:03 +1100
      Re: Code style query: multiple assignments in if/elif tree Rustom Mody <rustompmody@gmail.com> - 2014-03-31 09:20 -0700
        Re: Code style query: multiple assignments in if/elif tree Chris Angelico <rosuav@gmail.com> - 2014-04-01 03:29 +1100
          Re: Code style query: multiple assignments in if/elif tree "Rhodri James" <rhodri@wildebst.org.uk> - 2014-03-31 21:31 +0100
    Re: Code style query: multiple assignments in if/elif tree Ned Batchelder <ned@nedbatchelder.com> - 2014-03-31 17:42 -0400
    Re: Code style query: multiple assignments in if/elif tree Chris Angelico <rosuav@gmail.com> - 2014-04-01 09:50 +1100
    Re: Code style query: multiple assignments in if/elif tree Ben Finney <ben+python@benfinney.id.au> - 2014-04-01 09:57 +1100
    Re: Code style query: multiple assignments in if/elif tree Chris Angelico <rosuav@gmail.com> - 2014-04-01 10:12 +1100
      Re: Code style query: multiple assignments in if/elif tree Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-04-01 00:57 +0000
    Re: Code style query: multiple assignments in if/elif tree Ethan Furman <ethan@stoneleaf.us> - 2014-03-31 17:30 -0700
  Re: Code style query: multiple assignments in if/elif tree Steven D'Aprano <steve@pearwood.info> - 2014-04-01 04:26 +0000
    Re: Code style query: multiple assignments in if/elif tree Chris Angelico <rosuav@gmail.com> - 2014-04-01 16:01 +1100
      Re: Code style query: multiple assignments in if/elif tree Steven D'Aprano <steve@pearwood.info> - 2014-04-01 07:20 +0000
        Re: Code style query: multiple assignments in if/elif tree Chris Angelico <rosuav@gmail.com> - 2014-04-01 18:35 +1100
          Re: Code style query: multiple assignments in if/elif tree Steven D'Aprano <steve@pearwood.info> - 2014-04-01 08:07 +0000
            Re: Code style query: multiple assignments in if/elif tree Chris Angelico <rosuav@gmail.com> - 2014-04-01 19:12 +1100
        Re: Code style query: multiple assignments in if/elif tree Ian Kelly <ian.g.kelly@gmail.com> - 2014-04-01 02:18 -0600
        Re: Code style query: multiple assignments in if/elif tree Ian Kelly <ian.g.kelly@gmail.com> - 2014-04-01 02:24 -0600
    Re: Code style query: multiple assignments in if/elif tree Rustom Mody <rustompmody@gmail.com> - 2014-03-31 22:45 -0700
      Re: Code style query: multiple assignments in if/elif tree David Hutto <dwightdhutto@gmail.com> - 2014-04-01 02:05 -0400
      Re: Code style query: multiple assignments in if/elif tree Ian Kelly <ian.g.kelly@gmail.com> - 2014-04-01 00:28 -0600
    Re: Code style query: multiple assignments in if/elif tree Ian Kelly <ian.g.kelly@gmail.com> - 2014-04-01 00:13 -0600
    Re: Code style query: multiple assignments in if/elif tree David Hutto <dwightdhutto@gmail.com> - 2014-04-01 02:24 -0400
    Re: Code style query: multiple assignments in if/elif tree Ian Kelly <ian.g.kelly@gmail.com> - 2014-04-01 00:39 -0600
    Re: Code style query: multiple assignments in if/elif tree Chris Angelico <rosuav@gmail.com> - 2014-04-01 17:55 +1100
      Re: Code style query: multiple assignments in if/elif tree Steven D'Aprano <steve@pearwood.info> - 2014-04-01 07:29 +0000
        Re: Code style query: multiple assignments in if/elif tree Chris Angelico <rosuav@gmail.com> - 2014-04-01 18:49 +1100
        Re: Code style query: multiple assignments in if/elif tree Ian Kelly <ian.g.kelly@gmail.com> - 2014-04-01 02:29 -0600
        Re: Code style query: multiple assignments in if/elif tree Chris Angelico <rosuav@gmail.com> - 2014-04-01 19:56 +1100
    Re: Code style query: multiple assignments in if/elif tree David Hutto <dwightdhutto@gmail.com> - 2014-04-01 03:21 -0400
    Re: Code style query: multiple assignments in if/elif tree Chris Angelico <rosuav@gmail.com> - 2014-04-01 18:26 +1100
    Re: Code style query: multiple assignments in if/elif tree David Hutto <dwightdhutto@gmail.com> - 2014-04-01 03:34 -0400
    Re: Code style query: multiple assignments in if/elif tree David Hutto <dwightdhutto@gmail.com> - 2014-04-01 03:39 -0400
    Re: Code style query: multiple assignments in if/elif tree David Hutto <dwightdhutto@gmail.com> - 2014-04-01 03:46 -0400
    Re: Code style query: multiple assignments in if/elif tree Ian Kelly <ian.g.kelly@gmail.com> - 2014-04-01 02:55 -0600

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