Random string generation with upper case letters and digits in Python?

Better Stack Team
Updated on February 3, 2023

You can use the random module and the string module to generate a random string of a specified length that includes upper case letters and digits. Here's an example function that generates a random string of length n:

import random
import string

def generate_random_string(n):
    return ''.join(random.choices(string.ascii_uppercase + string.digits, k=n))


This function first imports the random and string modules, then defines a function called generate_random_string that takes an argument n for the length of the string to be generated. The function uses the random.choices() method to randomly select characters from the string.ascii_uppercase (uppercase letters) and string.digits (digits) strings, concatenates them, and join them to form a string of length n.

Got an article suggestion? Let us know
Explore more
Licensed under CC-BY-NC-SA

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

We are hiring.

Software is our way of making the world a tiny bit better. We build tools for the makers of tomorrow.

Explore all positions →

Reliability is the
ultimate feature

Delightful observability tools that turn your logs & monitoring into a secret weapon for shipping better software faster.

Explore Better Stack