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Groups > comp.lang.python > #17370

Re: Making the case for "typed" lists/iterators in python

From Roy Smith <roy@panix.com>
Newsgroups comp.lang.python
Subject Re: Making the case for "typed" lists/iterators in python
Date 2011-12-16 13:05 -0500
Organization PANIX Public Access Internet and UNIX, NYC
Message-ID <roy-CE17C0.13053616122011@news.panix.com> (permalink)
References <mailman.3739.1324057724.27778.python-list@python.org>

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In article <mailman.3739.1324057724.27778.python-list@python.org>,
 Nathan Rice <nathan.alexander.rice@gmail.com> wrote:

> I'd like to hear people's thoughts on the subject.  Currently we are
> throwing away useful information in many cases that could be used for
> code analysis, optimization and simpler interfaces. 

Most of this was TL:DNR, but I will admit I often wish for a better way 
to log intermediate values.  For example, a common pattern in the code 
I'm working with now is functions that end in:

   return [Foo(x) for x in bunch_of_x_thingies]

When something goes amiss and I want to debug the problem, I often 
transform that into:

    temp = [Foo(x) for x in bunch_of_x_thingies]
    logger.debug(temp)
    return temp

It would be convenient to be able to get at and log the intermediate 
value without having to pull it out to an explicit temporary.

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Thread

Making the case for "typed" lists/iterators in python Nathan Rice <nathan.alexander.rice@gmail.com> - 2011-12-16 12:48 -0500
  Re: Making the case for "typed" lists/iterators in python Roy Smith <roy@panix.com> - 2011-12-16 13:05 -0500
    Re: Making the case for "typed" lists/iterators in python Chris Angelico <rosuav@gmail.com> - 2011-12-17 05:25 +1100
    Re: Making the case for "typed" lists/iterators in python Arnaud Delobelle <arnodel@gmail.com> - 2011-12-16 18:38 +0000
    Re: Making the case for "typed" lists/iterators in python Chris Angelico <rosuav@gmail.com> - 2011-12-17 05:43 +1100
      Re: Making the case for "typed" lists/iterators in python Mel Wilson <mwilson@the-wire.com> - 2011-12-16 15:14 -0500
    Re: Making the case for "typed" lists/iterators in python Ben Finney <ben+python@benfinney.id.au> - 2011-12-17 07:17 +1100
    Re: Making the case for "typed" lists/iterators in python Terry Reedy <tjreedy@udel.edu> - 2011-12-16 17:21 -0500
  Re: Making the case for "typed" lists/iterators in python Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2011-12-19 14:16 +0100
    Re: Making the case for "typed" lists/iterators in python Nathan Rice <nathan.alexander.rice@gmail.com> - 2011-12-19 10:56 -0500

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