使用带有默认值的可选参数调用 function？

Question

I need to call the following function.

def f(p):
    # .....
    g(p)

and p of g(p) is optional

def g(p=some_default_value):

I actually need f(p) to call g() without p (I don't know some_default_value and it may change). However, p of f(p) is required. Is it a way to set p to some special value to let f call g with the default value of p ?

f(p=..?..)

Answer 1

Simply do

def g(p=None):
    pass

def f(p):
    g()

As long as you don't pass in p in g() , it is not taking anything in.