Skip to content
Related Articles

Related Articles

Improve Article

Python Program to Generate Random binary string

  • Last Updated : 06 Mar, 2020

Given a number n, the task is to generate a random binary string of length n.

Examples:

Input: 7
Output: Desired length random binary string is:  1000001

Input: 5
Output: Desired length random binary string is:  01001

Approach

  • Initialize an empty string, say key
  • Generate a randomly either “0” or “1” using randint function from random package.
  • Append the randomly generated “0” or “1” to the string, key
  • Repeat step 2 and 3 for the desired length of the string

Below is the implementation.




# Python program for random
# binary string generation
  
  
import random
  
  
# Function to create the
# random binary string
def rand_key(p):
    
    # Variable to store the 
    # string
    key1 = ""
  
    # Loop to find the string
    # of desired length
    for i in range(p):
          
        # randint function to generate
        # 0, 1 randomly and converting 
        # the result into str
        temp = str(random.randint(0, 1))
  
        # Concatenatin the random 0, 1
        # to the final result
        key1 += temp
          
    return(key1)
  
# Driver Code
n = 7
str1 = rand_key(n)
print("Desired length random binary string is: ", str1)

Output:

Desired length random binary string is:  1000001

 Attention geek! Strengthen your foundations with the Python Programming Foundation Course and learn the basics.  

To begin with, your interview preparations Enhance your Data Structures concepts with the Python DS Course. And to begin with your Machine Learning Journey, join the Machine Learning – Basic Level Course

My Personal Notes arrow_drop_up
Recommended Articles
Page :