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Re: The Most Diabolical Python Antipattern

From Mark Lawrence <breamoreboy@yahoo.co.uk>
Subject Re: The Most Diabolical Python Antipattern
Date 2015-01-30 08:10 +0000
References <madpuv$he7$1@ger.gmane.org> <20150129113238.7eaa986d@bigbox.christie.dr> <mailman.18286.1422571931.18130.python-list@python.org> <87r3uchjyg.fsf@elektro.pacujo.net>
Newsgroups comp.lang.python
Message-ID <mailman.18296.1422605482.18130.python-list@python.org> (permalink)

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On 30/01/2015 06:16, Marko Rauhamaa wrote:
> Ian Kelly <ian.g.kelly@gmail.com>:
>
>> At least use "except Exception" instead of a bare except. Do you
>> really want things like SystemExit and KeyboardInterrupt to get turned
>> into 0?
>
> How about:
>
> ==============================
>      try:
>          do_interesting_stuff()
>      except ValueError:
>          try:
>              log_it()
>          except:
>              pass
>          raise
> ==============================
>
> Surprisingly this variant could raise an unexpected exception:
>
> ==============================
>      try:
>          do_interesting_stuff()
>      except ValueError:
>          try:
>              log_it()
>          finally:
>              raise
> ==============================
>
> A Python bug?
>
>
> Marko
>

It depends on the Python version that you're running - I think!!!  See 
https://www.python.org/dev/peps/pep-3134/ 
https://www.python.org/dev/peps/pep-0409/ 
https://www.python.org/dev/peps/pep-0415/ and finally try (groan :) 
https://pypi.python.org/pypi/pep3134/

-- 
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.

Mark Lawrence

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Thread

Re: The Most Diabolical Python Antipattern Ian Kelly <ian.g.kelly@gmail.com> - 2015-01-29 15:51 -0700
  Re: The Most Diabolical Python Antipattern Marko Rauhamaa <marko@pacujo.net> - 2015-01-30 08:16 +0200
    Re: The Most Diabolical Python Antipattern Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-01-30 08:10 +0000
      Re: The Most Diabolical Python Antipattern Marko Rauhamaa <marko@pacujo.net> - 2015-01-30 11:02 +0200
        Re: The Most Diabolical Python Antipattern Ian Kelly <ian.g.kelly@gmail.com> - 2015-01-30 02:17 -0700
        Re: The Most Diabolical Python Antipattern Marko Rauhamaa <marko@pacujo.net> - 2015-01-30 12:00 +0200
          Re: The Most Diabolical Python Antipattern Ian Kelly <ian.g.kelly@gmail.com> - 2015-01-30 08:21 -0700
            Re: The Most Diabolical Python Antipattern Marko Rauhamaa <marko@pacujo.net> - 2015-01-30 17:30 +0200
              Re: The Most Diabolical Python Antipattern Ian Kelly <ian.g.kelly@gmail.com> - 2015-01-30 08:42 -0700
                Re: The Most Diabolical Python Antipattern Marko Rauhamaa <marko@pacujo.net> - 2015-01-30 17:56 +0200
                Re: The Most Diabolical Python Antipattern Ian Kelly <ian.g.kelly@gmail.com> - 2015-01-30 09:38 -0700
              Re: The Most Diabolical Python Antipattern Chris Angelico <rosuav@gmail.com> - 2015-01-31 02:55 +1100
    Re: The Most Diabolical Python Antipattern Ian Kelly <ian.g.kelly@gmail.com> - 2015-01-30 02:11 -0700
    Re: The Most Diabolical Python Antipattern Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-01-31 01:28 +0000

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