What's the business with the asterisk?

Tim Chase python.list at tim.thechases.com
Sat Jan 24 13:46:34 CET 2009


>  From time to time I spot an asterisk (*) used in the Python code 
> _outside_ the usual *args or **kwargs application.
> 
> E.g. here: http://www.norvig.com/python-lisp.html
> 
> def transpose (m):
>    return zip(*m)
>  >>> transpose([[1,2,3], [4,5,6]])
> [(1, 4), (2, 5), (3, 6)]
> 
> What does *m mean in this example and how does it do the magic here?

There's a good writeup on args/kwargs at

http://www.megasolutions.net/python/-args-and---kwargs-78766.aspx

(looks like the content was gleaned from comp.lang.python and 
credited)

-tkc






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