python *args and **kwargs
def foo(*args):
for a in args:
print(a)
foo(1)
# 1
foo(1,2,3)
# 1
# 2
# 3python *args and **kwargs
def foo(*args):
for a in args:
print(a)
foo(1)
# 1
foo(1,2,3)
# 1
# 2
# 3pass args and kwargs to funcitons
#1. When used as part of a function definition
def f(self, *args, **kwargs):
#it is used to signify an arbitrary number of positional or
#keyword arguments, respectively.
#The point to remember is that inside the function args will be a tuple,
#and kwargs will be a dict.
#2. When used as part of a function call,
args = (1, 2)
kwargs = {'last': 'Doe', 'first': 'John'}
self.f(*args, **kwargs)
#the * and ** act as unpacking operators.
#args must be an iterable, and kwargs must be dict-like.
#The items in args will be unpacked and sent to the function
#as positional arguments, and the key/value pairs in kwargs
#will be sent to the function as keyword arguments.
#Thus,
self.f(*args, **kwargs)
#is equivalent to
self.f(1, 2, last='Doe', first='John')Copyright © 2021 Codeinu
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