*args and **kwarg in Python

Source: Internet
Author: User

variable Parameters *args allows you to pass in 0 or any of these parameters, which are automatically assembled as a tuple when the function is called.

The keyword parameter , **kw , allows you to pass in 0 or any parameter with parameter names that are automatically assembled into a dict inside the function.

Variable parameter *args

def Calc (*numbers):    = 0    for in  numbers:        = sum + N N     return Sumcalc (1, 2) calc ()

Another way to use:

numbers = [1, 2, 3]calc (numbers[0], numbers[1], numbers[2]) calc (*numbers)

Keyword parameter **kw

# Coding=utf8 def person (name, age, * *kw)    :print", kw)

Results:

*args and **kwarg in Python

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