Passing a list of parameters into a Python function

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What does ** (double star/asterisk) and * (star/asterisk) do for parameters? 15 answers

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some_list = ["some", "values", "in", "a", "list", ]
func(*some_list)

This is equivalent to:

func("some", "values", "in", "a", "list")

The fixed x param might warrant a thought:

func(5, *some_list)

... is equivalent to:

func(5, "some", "values", "in", "a", "list")

If you don't specify value for x ( 5 in the example above), then first value of some_list will get passed to func as x param.

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Pass the values as comma separated values

>>> def func(x, *p):           # p is stored as tuple
...     print "x =",x
...     for i in p:
...         print i
...     return p
... 
>>> print func(1,2,3,4)        # x value 1, p takes the rest
x = 1
2
3
4
(2,3,4)                        # returns p as a tuple

You can learn more by reading the docs

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