atexit.register in case of errors

Thomas Rachel nutznetz-0c1b6768-bfa9-48d5-a470-7603bd3aa915 at spamschutz.glglgl.de
Wed Feb 15 16:18:30 CET 2012


Am 15.02.2012 14:52 schrieb Devin Jeanpierre:
> On Wed, Feb 15, 2012 at 8:33 AM, Mel Wilson<mwilson at the-wire.com>  wrote:
>> The usual way to do what you're asking is
>>
>> if __name__ == '__main__':
>>     main()
>>     goodbye()
>>
>> and write main so that it returns after it's done all the things it's
>> supposed to do.  If you've sprinkled `sys.exit()` all over your code, then
>> don't do that.  If you're forced to deal with a library that hides
>> `sys.exit()` calls in the functions, then you have my sympathy.  Library
>> authors should not do that, and there have been threads on c.l.p explaining
>> why they shouldn't.
>
> In such a case. one can do::
>
>      if __name__ == '__main__':
>          try:
>              main()
>          except SystemExit:
>              pass
>          goodbye()
>
> -- Devin

Wouldn't

if __name__ == '__main__':
     try:
         main()
     finally:
         goodbye()

be even better? Or doesn't it work well together with SystemExit?


Thomas



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