Re: What exactly is "pass"? What should it be?

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Date	Fri, 18 Nov 2011 13:59:13 +1100
Subject	Re: What exactly is "pass"? What should it be?
From	Chris Angelico <rosuav@gmail.com>
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On Fri, Nov 18, 2011 at 1:18 PM, John Ladasky <ladasky@my-deja.com> wrote:
> def _pass(*args):
>    pass
>
> def long_running_process(arg1, arg2, arg_etc, report = _pass):
>

For some compactness at the expense of brevity, you could use a lambda:

def long_running_process(arg1, arg2, arg_etc, report = lambda msg: None):

Other than that, I think it's fine. (Actually, the lambda has a slight
advantage in self-documentation; in the main function's definition it
specifies that the 'report' argument is a function that takes one
argument, the message. (Or whatever that argument is. Name it
appropriately.)

If you call your dummy function something else, it may help
readability/self-documentation too. On the other hand, it may not.
YMMV.

ChrisA

Thread

What exactly is "pass"?  What should it be? John Ladasky <ladasky@my-deja.com> - 2011-11-17 18:18 -0800
  Re: What exactly is "pass"? What should it be? Chris Rebert <clp2@rebertia.com> - 2011-11-17 18:45 -0800
    Re: What exactly is "pass"? What should it be? John Ladasky <ladasky@my-deja.com> - 2011-11-17 21:03 -0800
    Re: What exactly is "pass"? What should it be? John Ladasky <ladasky@my-deja.com> - 2011-11-17 21:03 -0800
  Re: What exactly is "pass"? What should it be? Chris Angelico <rosuav@gmail.com> - 2011-11-18 13:59 +1100
    Re: What exactly is "pass"? What should it be? alex23 <wuwei23@gmail.com> - 2011-11-17 22:04 -0800
  Re: What exactly is "pass"? What should it be? Dominic Binks <dbinks@codeaurora.org> - 2011-11-17 19:01 -0800
  Re: What exactly is "pass"?  What should it be? Ben Finney <ben+python@benfinney.id.au> - 2011-11-18 14:45 +1100
  Re: What exactly is "pass"?  What should it be? Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2011-11-17 20:34 -0800
    Re: What exactly is "pass"?  What should it be? John Ladasky <ladasky@my-deja.com> - 2011-11-17 21:07 -0800
      Re: What exactly is "pass"? What should it be? Chris Angelico <rosuav@gmail.com> - 2011-11-18 16:34 +1100
      Re: What exactly is "pass"? What should it be? Chris Rebert <clp2@rebertia.com> - 2011-11-17 21:49 -0800
      Re: What exactly is "pass"?  What should it be? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-11-18 06:07 +0000
    Re: What exactly is "pass"?  What should it be? John Ladasky <ladasky@my-deja.com> - 2011-11-17 21:07 -0800
    Re: What exactly is "pass"?  What should it be? Thomas Rachel <nutznetz-0c1b6768-bfa9-48d5-a470-7603bd3aa915@spamschutz.glglgl.de> - 2011-11-18 10:57 +0100
  Re: What exactly is "pass"?  What should it be? MRAB <python@mrabarnett.plus.com> - 2011-11-18 13:03 +0000

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