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Re: Using "with" context handler, and catching specific exception?

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On 22/10/2013 02:43, Victor Hooi wrote:
> Hi,
>
> I suspect I'm holding
>
> How should I use the "with" context handler as well as handling specific exceptions?
>
> For example, for a file:
>
>      with open('somefile.log', 'wb') as f:
>          f.write("hello there")
>
> How could I specifically catch IOError in the above, and handle that? Should I wrap the whole thing in a try-except block?
>
Yes, it's as simple as that.

> (For example, if I wanted to try a different location, or if I wanted to print a specific error message to the logfile).
>
>      try:
>          with open('somefile.log', 'wb' as f:
>              f.write("hello there")
>      except IOError as e:
>          logger.error("Uhoh, the file wasn't there").
>

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Using "with" context handler, and catching specific exception? Victor Hooi <victorhooi@gmail.com> - 2013-10-21 18:43 -0700
  Re: Using "with" context handler, and catching specific exception? MRAB <python@mrabarnett.plus.com> - 2013-10-22 03:04 +0100
  Re: Using "with" context handler, and catching specific exception? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-10-22 02:48 +0000
  Re: Using "with" context handler, and catching specific exception? Ben Finney <ben+python@benfinney.id.au> - 2013-10-22 14:04 +1100
    Re: Using "with" context handler, and catching specific exception? Victor Hooi <victorhooi@gmail.com> - 2013-10-21 20:27 -0700
      Re: Using "with" context handler, and catching specific exception? Ben Finney <ben+python@benfinney.id.au> - 2013-10-22 14:53 +1100
        Re: Using "with" context handler, and catching specific exception? Victor Hooi <victorhooi@gmail.com> - 2013-10-22 18:11 -0700

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