Example:
def somerando(a,b,c,d):
if not a+b+c+d == 9000:
return (a+b+c+d)
somerando(1,2,3,4)
Returns: 10
but
randonumbs = [1,2,3,4]
somerando(randonumbs)
Gives the following error:
TypeError Traceback (most recent call last) in ----> 1 somerando(randonumbs)
TypeError: somerando() missing 3 required positional arguments: 'b', 'c', and 'd'
your function expects 4 arguments. randonumbs = [1,2,3,4] is a list (of four items); that is one argument for your function.
you could do this:
randonumbs = [1,2,3,4]
somerando(*randonumbs)
this usage of the asterisk (*) is discussed in this question or in PEP 3132.
You passed randonumbs as list, means this whole list is considered as first argument to the function somerando
You can use somerando(*randonumbs) .
Here, * means pass as tuple & ** means pass as dictionary (key, value pair) if you use ** in function parameters/ arguments.
Thank you.
The single-asterisk form of *args can be used as a parameter to send a non-keyworded variable-length argument list to functions, like below
randonumbs = [1,2,3,4]
somerando(*randonumbs)
The double asterisk form of **kwargs is used to pass a keyworded, variable-length argument dictionary to a function.
randonumbs = {'a':1, 'b':2, 'c': 3, 'd': 4}
somerando(**randonumbs)
