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Groups > comp.lang.python > #98271

Re: How to handle exceptions properly in a pythonic way?

Newsgroups comp.lang.python
Date 2015-11-04 19:41 -0800
References <4b303213-62e2-42d4-b2f6-4fc1f6025944@googlegroups.com> <n18fmg$oj6$1@reader1.panix.com>
Message-ID <e134f1a3-89cc-4497-807e-3dd0836fb5e6@googlegroups.com> (permalink)
Subject Re: How to handle exceptions properly in a pythonic way?
From zljubisic@gmail.com

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> The best way is probably to do nothing at all, and let the caller handle
> any exceptions.

In that case every call of the get_html function has to be in the try/except block with many exceptions.
Sometimes, it is enough just to know whether I managed to get the html or not.
In that case, I could for example, in get_html have try/except block which will as result raise let's say NoHtml custom exception or return some special value.

Raising an exception forces me to put every call of the get_html function in try/except block.
If I am returning a special value, than I can call get_html and then test the value.

I am not sure which approach is better.

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Thread

How to handle exceptions properly in a pythonic way? zljubisic@gmail.com - 2015-11-02 11:24 -0800
  Re: How to handle exceptions properly in a pythonic way? John Gordon <gordon@panix.com> - 2015-11-02 20:05 +0000
    Re: How to handle exceptions properly in a pythonic way? zljubisic@gmail.com - 2015-11-04 19:41 -0800
      Re: How to handle exceptions properly in a pythonic way? Chris Angelico <rosuav@gmail.com> - 2015-11-05 14:58 +1100
        Re: How to handle exceptions properly in a pythonic way? zljubisic@gmail.com - 2015-11-04 20:18 -0800
          Re: How to handle exceptions properly in a pythonic way? Chris Angelico <rosuav@gmail.com> - 2015-11-05 15:51 +1100
            Re: How to handle exceptions properly in a pythonic way? zljubisic@gmail.com - 2015-11-09 13:43 -0800
          Re: How to handle exceptions properly in a pythonic way? tian.su.yale@gmail.com - 2015-11-04 21:02 -0800
  Re: How to handle exceptions properly in a pythonic way? Ian Kelly <ian.g.kelly@gmail.com> - 2015-11-02 13:58 -0700
    Re: How to handle exceptions properly in a pythonic way? zljubisic@gmail.com - 2015-11-04 20:11 -0800
  Re: How to handle exceptions properly in a pythonic way? tian.su.yale@gmail.com - 2015-11-04 21:15 -0800
    Re: How to handle exceptions properly in a pythonic way? zljubisic@gmail.com - 2015-11-09 13:36 -0800

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