Steve Holden wrote:
> [EMAIL PROTECTED] wrote:
>> I think I read a suggestion somewhere to wrap the code where a Python
>> script starts in a main() function, so one has
>>
>> def main():
>> print "hi"
>>
>> main()
>>
>> instead of
>>
>> print "hi"
>>
>> What are the advantages of doing this?
>>
> Guido van Rossum himself can tell you:
>
> http://www.artima.com/forums/flat.jsp?forum=106&thread=4829
Interesting. A lot of the suggestions he makes are unnecessary if you
use argparse_ or optparse, since they do much cleaner argument parsing
and error reporting.
I basically never write a main() function in the sense described here.
My code usually looks something like:
if __name__ == '__main__':
parser = _argparse.ArgumentParser(...)
parser.add_argument(...)
...
arguments = parser.parse_args()
function_that_actually_does_stuff(arguments.foo,
arguments.bar,
arguments.baz)
So my ``if __name__ == '__main__'`` block does just enough argument
parsing to be able to call a real function.
.. _argparse: http://argparse.python-hosting.com/
STeVe
--
http://mail.python.org/mailman/listinfo/python-list
