difference between args and kwargs python code example

Example 1: 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)

Example 2: **kwargs

When it iterating over a dictionary you are only able to iterate over 
the keys not the values. The ** when placed before a variable will allow
you to iterate and unpack both key and value pairs. Because you are 
unpacking both key and value this will return the result as a dictionary.