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

Newsgroups comp.lang.python
Date 2015-11-09 13:43 -0800
References (1 earlier) <n18fmg$oj6$1@reader1.panix.com> <e134f1a3-89cc-4497-807e-3dd0836fb5e6@googlegroups.com> <mailman.43.1446695916.16136.python-list@python.org> <4cb51da8-9331-4efe-87d3-dfe9c2ae0f8e@googlegroups.com> <mailman.44.1446699105.16136.python-list@python.org>
Message-ID <70b30688-2558-4974-bdb8-e579f4ffa6fa@googlegroups.com> (permalink)
Subject Re: How to handle exceptions properly in a pythonic way?
From zljubisic@gmail.com

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Hi,

> def get_html(...):
>     try:
>         ... actually go get the info
>         return info
>     except (ConnectionError, OSError, SocketError) as e:
>         raise ContentNotFoundError from e

Personally, I never liked "early returns". I would rather used a variable and the last line in the function would be return variable.
Anyway, I got the point.

> To use this code, what you'd do is:
> 
> try:
>     data = get_html(...)
> except ContentNotFoundError:
>     # deal with the case of not having anything to work with

I got a picture. Thanks.

I have to rethink now about two approaches. One would be as you have suggested in this mail - raising ContentNotFoundError, and another one would be not to mask root exceptions and deal with them instead of ContentNotFoundError.

You have clarified to me the concept. Thanks.

Regards.

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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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