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On Tuesday 03 September 2013 06:27 AM, Anand Chitipothu wrote:
>> This is another version of this by mucking around directly with
>> sys.exitfunc using a with context.
>>
>> from contextlib import contextmanager
>>
>> @contextmanager def end_of_days(): def wrapper(): print
>> 'Goodbye.' yield wrapper
>>
>> with end_of_days() as sys.exitfunc: print 3+4
>>
>
> How is this different from:
>
> import sys def goodbye(): print "Goodbye"
>
> sys.exitfunc = goodbye
>
> I don't think we are really doing anything with the context in your
> example except initializing sys.exitfunc.
Well, nothing really except maybe,
@contextmanager
def end_of_days():
before_context()
def wrapper():
print 'Goodbye.'
yield wrapper
print after_context()
with end_of_days() as sys.exitfunc:
print 3+4
Just provides a context manager as well to do things
before entering context and after exiting (just before
sys.exit in this case), in a modular way.
>
> Anand _______________________________________________ BangPypers
> mailing list BangPypers@python.org
> http://mail.python.org/mailman/listinfo/bangpypers
>
- --
Regards,
- --Anand
-
--------------------------------------------------------------------------------------
Software Architect/Consultant
anandpil...@letterboxes.org
Please note my updated email address <anandpil...@letterboxes.org>.
Kindly update your address books.
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