Python Program to Generate Random Password

Python – Generate Random Password

You can generate a random password from a desired set of characters.

To choose the character sets like alphabets, digits, or punctuation marks, we shall use string package.

To choose a random character from these character sets, we shall use random.choice() function.

And if we choose N number of times and join those characters, we end up with a randomly generated password of length N.

Examples

1. Generate password of specific length

In this example, we shall generate a password containing upper case alphabets, lower case alphabets, digits and punctuation mark characters.

We shall use string package to define allowed characters in our password.

import random
import string

N = 20 #password length

# Allowed string constants
allowedChars = string.ascii_letters + string.digits + string.punctuation

# Genereate password
password = ''.join(random.choice(allowedChars) for _ in range(N))

print(password)

string.ascii_letters returns a string of lower and upper case alphabets.
string.digits returns a string of numbers from 0 to 9.
string.punctuation returns a string of symbols like !,@,#,$,[,], etc.

random.choice() picks a character randomly from these allowed characters we have taken.

Output

kfOJ4Vt$,-$[wBLB+q\'

Summary

In this tutorial of Python Examples, we learned how to randomly generate a password, with the help of well detailed examples.