[Tutor] conditional execution

[Mark Lawrence]

On 02/04/2014 08:18, spir wrote:
> On 04/01/2014 06:24 PM, Zachary Ware wrote:
>> Hi Patti,
>>
>> On Tue, Apr 1, 2014 at 11:07 AM, Patti Scott <pscott_74 at yahoo.com> wrote:
>>> I've been cheating:  comment out the conditional statement and adjust
>>> the
>>> indents. But, how do I make my program run with if __name__ == 'main':
>>> main() at the end?  I thought I understood the idea to run a module
>>> called
>>> directly but not a module imported.  My program isn't running, though.
>>
>> The simple fix to get you going is to change your ``if __name__ ==
>> 'main':`` statement to ``if __name__ == '__main__':`` (add two
>> underscores on each side of "main").  To debug this for yourself, try
>> putting ``print(__name__)`` right before your ``if __name__ ...``
>> line, and see what is printed when you run it in different ways.
>>
>> Hope this helps, and if you need any more help or a more in-depth
>> explanation of what's going on, please don't hesitate to ask :)
>
> And you don't even need this idiom if your module is only to be executed
> (not imported). Just write "main()".
>

A counter to the above comment 
http://www.jeffknupp.com/blog/2014/04/03/dont-write-python-scripts-write-python-libraries/

-- 
My fellow Pythonistas, ask not what our language can do for you, ask 
what you can do for our language.

Mark Lawrence

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