Re: Try-except-finally paradox

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Date	Fri, 31 Jan 2014 00:19:27 +1100
Subject	Re: Try-except-finally paradox
From	Chris Angelico <rosuav@gmail.com>
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On Fri, Jan 31, 2014 at 12:11 AM, MRAB <python@mrabarnett.plus.com> wrote:
> One of the reasons that the 'with' statement was added was to prevent
> the mistake that you've just done. ;-)
>
> What if the file can't be opened?

Yeah, whoops. The open shouldn't be inside try/finally.

def func():
    output = open("output.txt", "w")
    try:
         # do a whole lot of stuff ...
    finally:
         output.close()

But my point still stands, I believe :)

ChrisA

Thread

Try-except-finally paradox Jessica Ross <deathweasel@gmail.com> - 2014-01-29 21:56 -0800
  Re: Try-except-finally paradox Ian Kelly <ian.g.kelly@gmail.com> - 2014-01-29 23:23 -0700
  Re: Try-except-finally paradox Andrew Berg <robotsondrugs@gmail.com> - 2014-01-30 00:33 -0600
    Re: Try-except-finally paradox Rotwang <sg552@hotmail.co.uk> - 2014-01-30 18:12 +0000
      Re: Try-except-finally paradox Ethan Furman <ethan@stoneleaf.us> - 2014-01-30 10:30 -0800
  Re: Try-except-finally paradox wxjmfauth@gmail.com - 2014-01-29 22:59 -0800
  Re:Try-except-finally paradox Dave Angel <davea@davea.name> - 2014-01-30 07:05 -0500
  Re: Try-except-finally paradox Chris Angelico <rosuav@gmail.com> - 2014-01-31 00:02 +1100
  Re: Try-except-finally paradox MRAB <python@mrabarnett.plus.com> - 2014-01-30 13:11 +0000
  Re: Try-except-finally paradox Chris Angelico <rosuav@gmail.com> - 2014-01-31 00:19 +1100
  Re: Try-except-finally paradox Terry Reedy <tjreedy@udel.edu> - 2014-01-31 00:26 -0500
  Re: Try-except-finally paradox Göktuğ Kayaalp <self@gkayaalp.com> - 2014-02-01 03:58 +0200

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