how to make a new variable in python code example

Example 1: how to make otp generator in python

# Python Program for simple OTP genertaor

import random as r
# function for otp generation
def otpgen():
    otp=""
    for i in range(4):
        otp+=str(r.randint(1,9))
    print ("Your One Time Password is ")
    print (otp)
otpgen()

Example 2: how to create a variable in python

variable1 = "value" # string
variable2 = 1000000 # integer
variable3 = 10000.0 # real/float
variable4 = True # boolean: True or False