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Re: Functions vs OOP

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On Mon, Sep 5, 2011 at 9:41 AM, Steven D'Aprano
<steve+comp.lang.python@pearwood.info> wrote:
> http://docs.python.org/dev/howto/functional.html
>
> What about the entire "Introduction" section, which starts with this
> statement?
>
> "This section explains the basic concept of functional programming"
>
> If you would like to suggest improvements, please do so.

Well, it does invite you to skip that whole section :)

Since you asked, though, the copyeditor in me does want to suggest one
small tweak:

Second paragraph after the bullet list ends "Avoiding side effects
means not using data structures that get updated as a program runs;
every function’s output must only depend on its input." - I'd word it
as "must depend only on". Pretty immaterial, but the formal style
prefers correctness.

Somewhat more significant: Under "Modularity", may be of value to add
a paragraph about parallelism.

With functional code, it's easy for an interpreter to ascertain which
functions depend on each other (because one's return value is
another's input). Independent functions can be run in parallel without
affecting the result; the interpreter can therefore divide a complex
task across multiple CPUs without any work from the programmer.

Like I said, it's just "since you asked". :) The above paragraph is
hereby given out as public domain, use it (edit it, whatever) under
whatever license the Python docs require.

ChrisA

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Thread

Functions vs OOP William Gill <noreply@domain.invalid> - 2011-09-03 12:15 -0400
  Re: Functions vs OOP Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-09-04 02:25 +1000
    Re: Functions vs OOP Terry Reedy <tjreedy@udel.edu> - 2011-09-03 15:15 -0400
      Re: Functions vs OOP William Gill <noreply@domain.invalid> - 2011-09-03 17:34 -0400
        Re: Functions vs OOP Ben Finney <ben+python@benfinney.id.au> - 2011-09-04 07:39 +1000
          Re: Functions vs OOP William Gill <nospam@domain.invalid> - 2011-09-03 17:58 -0400
        Re: Functions vs OOP Terry Reedy <tjreedy@udel.edu> - 2011-09-03 21:51 -0400
          Re: Functions vs OOP William Gill <noreply@domain.invalid> - 2011-09-03 22:18 -0400
    Re: Functions vs OOP William Gill <nospam@domain.invalid> - 2011-09-05 14:58 -0400
  Re: Functions vs OOP MRAB <python@mrabarnett.plus.com> - 2011-09-03 17:29 +0100
    Re: Functions vs OOP William Gill <noreply@domain.invalid> - 2011-09-03 17:09 -0400
  Re: Functions vs OOP Ian Kelly <ian.g.kelly@gmail.com> - 2011-09-03 12:50 -0600
    Re: Functions vs OOP William Gill <noreply@domain.invalid> - 2011-09-03 17:13 -0400
    Re: Functions vs OOP tinnews@isbd.co.uk - 2011-09-04 09:13 +0100
      Re: Functions vs OOP Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-09-04 21:18 +1000
      Re: Functions vs OOP Terry Reedy <tjreedy@udel.edu> - 2011-09-04 14:32 -0400
        Re: Functions vs OOP William Gill <nospam@domain.invalid> - 2011-09-04 15:43 -0400
          Re: Functions vs OOP Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-09-05 09:41 +1000
            Re: Functions vs OOP William Gill <nospam@domain.invalid> - 2011-09-04 20:46 -0400
            Re: Functions vs OOP Chris Angelico <rosuav@gmail.com> - 2011-09-05 10:59 +1000
  Re: Functions vs OOP rusi <rustompmody@gmail.com> - 2011-09-04 06:13 -0700
    Re: Functions vs OOP William Gill <noreply@domain.invalid> - 2011-09-05 13:45 -0400
      Re: Functions vs OOP Jean-Michel Pichavant <jeanmichel@sequans.com> - 2011-09-05 21:04 +0200
        Re: Functions vs OOP William Gill <nospam@domain.invalid> - 2011-09-05 20:30 -0400
      Re: Functions vs OOP Terry Reedy <tjreedy@udel.edu> - 2011-09-05 18:55 -0400

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