Multiple optional arguments python

Question

So I have a function with several optional arguments like so:

def func1(arg1, arg2, optarg1=None, optarg2=None, optarg3=None):

Optarg1 &

Answer 1

If you assign them in the call of the function you can pre-empt which parameter you are passing in.

def foo( a, b=None, c=None):
    print("{},{},{}".format(a,b,c))

>>> foo(4) 
4,None,None
>>> foo(4,c=5)
4,None,5