How to pass a list as a function's arguments

Question

If I have a function:

def run(time, message, time_span_pattern):
    ...

And a list like:

run_args = ['1s', '1 second alarm', <_sre.SRE_Pattern object at 0x100435680>]

How can I pass the list, as separate arguments, to run? Is there a builtin way to do this, or am I forced to reference each element individually and by index?

note, that is not a valid list because <_sre.SRE_Pattern object at 0x100435680> is not a valid identifer. But if it had been all you need is run(*run_args) — e4c5, Jan 06 '17 at 07:49
http://stackoverflow.com/questions/36901/what-does-double-star-and-star-do-for-parameters — Łukasz Rogalski, Jan 06 '17 at 07:49
@ŁukaszRogalski yeah but that question is about how to make a function which accepts multiple arguments, not about how to pass a list into one. — theonlygusti, Jan 06 '17 at 07:53

score 3 · Accepted Answer · edited May 23 '17 at 12:13

3

You're looking for:

run(*run_args)

This is explained in more detail in this StackOverflow answer about the star and double star operator

It's also covered in the python docs

edited May 23 '17 at 12:13

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answered Jan 06 '17 at 07:48

ffledgling

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How to pass a list as a function's arguments

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