design_func_args.py

def fun1(arg):
    print(arg)

def fun2(arg,arg2):
    print(arg, arg2)

def fun3(arg, *arg2):
    print(arg, arg2)

def fun4(*arg):
    print(arg)

def fun5(**kw):
    print(kw)

def fun6(*arg, **kw):
    print(arg)


fun1(10)
fun2(10,20)
fun3(10,20,30)
fun4(10,20,30,40)
fun5(a=10,b=20)
fun6(10,20,40)