Random Binary Tree Generator using Python

How to generate a random phone number using Python?

Last Updated : 27 Mar, 2021

In this article, we will learn how to generate a random phone number using Python. In general, Indian phone numbers are of 10 digits and start with 9, 8, 7, or 6.

Approach:

We will use the random library to generate random numbers.
The number should contain 10 digits.
The first digit should start with 9 or 8 or 7 or 6, we will use randint() method.
The remaining 9 digits will also be generated using the randint() method.

Examples:

The generated random phone numbers would looklike:
9980231467
8726189362

Implementation:

Python3

# import module 
import random as r 
  
ph_no = [] 
  
# the first number should be in the range of 6 to 9 
ph_no.append(r.randint(6, 9)) 
  
# the for loop is used to append the other 9 numbers. 
# the other 9 numbers can be in the range of 0 to 9. 
for i in range(1, 10): 
    ph_no.append(r.randint(0, 9)) 
  
# printing the number 
for i in ph_no: 
    print(i, end="") 

Output:

8349603502

Random Binary Tree Generator using Python

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