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Re: breaking out of outer loops

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From Chris Angelico <rosuav@gmail.com>
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Subject Re: breaking out of outer loops
Date Tue, 8 Mar 2016 10:49:19 +1100
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On Tue, Mar 8, 2016 at 10:42 AM, Chris Kaynor <ckaynor@zindagigames.com> wrote:
> And the same rough example, using an exception without a function:
>
> for file in files:
>     try:
>         for line in file:
>             section = line.split()
>             for section in line:
>                 if sectionCorrupt:
>                     raise Exception('Section corrupt') # You probably want
> more details here, for possible manual repair. You could also have a custom
> exception class for more control.
>     except Exception as e:
>         print('Failed to process the file {} with error {}.'.format(file,
> str(e))) # Probably should also print the entire traceback to aid in
> repairing errors, especially if they are due to a bug in the code, but this
> is the rough idea.

Yes, although I would more strongly suggest the custom exception
class. In fact, the way I'd word it is: Never raise Exception, always
a subclass. Otherwise it's too easy to accidentally catch something
elsewhere in the code (a ValueError or TypeError or even
AttributeError).

ChrisA

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Thread

breaking out of outer loops Fillmore <fillmore_remove@hotmail.com> - 2016-03-07 18:09 -0500
  Re: breaking out of outer loops Ian Kelly <ian.g.kelly@gmail.com> - 2016-03-07 16:17 -0700
    Re: breaking out of outer loops Fillmore <fillmore_remove@hotmail.com> - 2016-03-07 18:21 -0500
      Re: breaking out of outer loops Chris Kaynor <ckaynor@zindagigames.com> - 2016-03-07 15:42 -0800
      Re: breaking out of outer loops Chris Angelico <rosuav@gmail.com> - 2016-03-08 10:49 +1100
      Re: breaking out of outer loops Terry Reedy <tjreedy@udel.edu> - 2016-03-07 21:54 -0500
  Re: breaking out of outer loops Rob Gaddi <rgaddi@highlandtechnology.invalid> - 2016-03-07 23:29 +0000
    Re: breaking out of outer loops Fillmore <fillmore_remove@hotmail.com> - 2016-03-07 18:40 -0500
  Re: breaking out of outer loops Chris Angelico <rosuav@gmail.com> - 2016-03-08 10:47 +1100
  Re: breaking out of outer loops Fillmore <fillmore_remove@hotmail.com> - 2016-03-07 19:02 -0500
    Re: breaking out of outer loops Chris Angelico <rosuav@gmail.com> - 2016-03-08 11:08 +1100
      Re: breaking out of outer loops Fillmore <fillmore_remove@hotmail.com> - 2016-03-07 19:13 -0500
        Re: breaking out of outer loops Joel Goldstick <joel.goldstick@gmail.com> - 2016-03-07 19:21 -0500
  Re: breaking out of outer loops Mark Lawrence <breamoreboy@yahoo.co.uk> - 2016-03-08 00:36 +0000
  Re: breaking out of outer loops Mark Lawrence <breamoreboy@yahoo.co.uk> - 2016-03-08 03:45 +0000

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