Answers for "python *args and **kwargs"

args kwargs python

>>> def argsKwargs(*args, **kwargs):
...     print(args)
...     print(kwargs)
... 
>>> argsKwargs('1', 1, 'slgotting.com', upvote='yes', is_true=True, test=1, sufficient_example=True)
('1', 1, 'slgotting.com')
{'upvote': 'yes', 'is_true': True, 'test': 1, 'sufficient_example': True}

difference between args and kwargs in python

# We use *args and **kwargs as an argument when we are unsure 
# about the number of arguments to pass in the functions.

#This is an example of *args 
def adder(*num):
    sum = 0
    
    for n in num:
        sum = sum + n

    print("Sum:",sum)

adder(3,5)
adder(4,5,6,7)
adder(1,2,3,5,6)\


#This is an example of **kwargs
def intro(**data):
    print("\nData type of argument:",type(data))

    for key, value in data.items():
        print("{} is {}".format(key,value))

intro(Firstname="Sita", Lastname="Sharma", Age=22, Phone=1234567890)
intro(Firstname="John", Lastname="Wood", Email="[email protected]", Country="Wakanda", Age=25, Phone=9876543210)

use of kwargs and args in python classes

def myFun(*args,**kwargs): 
    print("args: ", args) 
    print("kwargs: ", kwargs) 
    
myFun('my','name','is Maheep',firstname="Maheep",lastname="Chaudhary")

# *args - take the any number of argument as values from the user 
# **kwargs - take any number of arguments as key as keywords with 
# value associated with them

python *args

# concatenate_keys.py
def concatenate(**kwargs):
    result = ""
    # Iterating over the keys of the Python kwargs dictionary
    for arg in kwargs:
        result += arg
    return result

print(concatenate(a="Real", b="Python", c="Is", d="Great", e="!"))

kwargs in python

def display2(a,b,c):
    print("kwarg1:", a)
    print("kwarg2:", b)
    print("kwarg3:", c)

d = {"a": 1, "b": 2, "c": 3}
display2(**d)

python *args and **kwargs

def foo(*args):
    for a in args:
        print(a)        

foo(1)
# 1

foo(1,2,3)
# 1
# 2
# 3