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Re: Proper way to handle errors in a module

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On Thu, May 12, 2011 at 03:12:39PM -0500, Andrew Berg wrote:
> On 2011.05.12 02:25 PM, MRAB wrote:
> > You can raise an exception wherever you like! :-)
> If I raise an exception that isn't a built-in exception, I get something
> like "NameError: name 'HelloError' is not defined". I don't know how to
> define the exception.

You'll have to define it, as you would anything else (exceptions are
just regular "things"; in fact you can raise anything that's a class
or instance). I typically don't put a whole lot in my exception
classes, though.

point:~/working$ python
Python 2.6.2 (r262:71600, Jun  8 2009, 11:11:42) 
[GCC 4.3.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> class HelloError(Exception): pass
... 
>>> raise HelloError("hello!")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  __main__.HelloError: hello!

\t

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Thread

Proper way to handle errors in a module Andrew Berg <bahamutzero8825@gmail.com> - 2011-05-11 12:29 -0500
  Re: Proper way to handle errors in a module Roy Smith <roy@panix.com> - 2011-05-11 14:05 -0400
    Re: Proper way to handle errors in a module Andrew Berg <bahamutzero8825@gmail.com> - 2011-05-12 14:14 -0500
    Re: Proper way to handle errors in a module MRAB <python@mrabarnett.plus.com> - 2011-05-12 20:25 +0100
    Re: Proper way to handle errors in a module Andrew Berg <bahamutzero8825@gmail.com> - 2011-05-12 15:12 -0500
    Re: Proper way to handle errors in a module Corey Richardson <kb1pkl@aim.com> - 2011-05-12 16:20 -0400
    Re: Proper way to handle errors in a module Tycho Andersen <tycho@tycho.ws> - 2011-05-12 15:26 -0500
      Re: Proper way to handle errors in a module Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-13 00:43 +0000
    Re: Proper way to handle errors in a module MRAB <python@mrabarnett.plus.com> - 2011-05-12 21:26 +0100
    Re: Proper way to handle errors in a module Ethan Furman <ethan@stoneleaf.us> - 2011-05-12 13:40 -0700
    Re: Proper way to handle errors in a module Andrew Berg <bahamutzero8825@gmail.com> - 2011-05-12 15:35 -0500
      Re: Proper way to handle errors in a module Ben Finney <ben+python@benfinney.id.au> - 2011-05-13 10:56 +1000

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