Create Your Own Random Password Generator Using Python [Free Source Code]

This program generates random password using simple python script. This script can be a good small python project to be shown in your class or to your colleagues.

To begin programming our random password generator, first, we need to import 'random module' from python 3. This is built in module and you don't need to install any package for that. Simply write

import random

Next we define list to store password, which will be generated by script.

password = []

Next step is to define lists of characters, numbers and symbols for password. Keep in mind that these are user generated lists you can customize them according to your preference.

letters = ['A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z','a','b','c', 'd', 'e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z']

numbers = ['1','2','3','4','5','6','7','8','9','0']

characters = ['+','(',')','*','%','^','$','_','@','=']

Now that we have laid basic bricks for our code, we must know the length of password that user want’s to generate and number of characters or symbols or numbers user wants to add to its password. To do this we define three input statements which ask user for its preference regarding password. Simply write

no_letters = int(input("How many letters would you like in your password?\n"))

no_numbers = int(input("How many number would you like?\n"))

no_characters = int(input("How many symbols would you like?\n"))

above three statements take input from user and store them in variables called no_letters, no_numbers and no_characters, [You can use your own naming scheme], and store them as int type.

Next we start generating password by simply looping through our lists [letters, numbers and characters]. Go ahead and write

for x in range(0,no_letters):

password += random.choice(letters)

for x in range(0,no_numbers):

password += random.choice(numbers)

for x in range(0,no_characters):

password += random.choice(characters)

now that password has been generated but it will contain sequential characters, just for understanding the password is not random so we will shuffle it by writing

random.shuffle(password)

and then we store it in a new password like this.

random.shuffle(password)

new_password = ""

for char in password:

new_password += char

and in the last we just simply print it by writing

print(f"Your password is {new_password}")

putting everything together. Below is the complete code of random password generator python project. This code should run just fine on your machine.

Source Code 👇

#-------------------------------------------------------------------

#This program generates password randomly

import random

password = []

letters = ['A','B','C','D','E','F','G','H','I','J','K','L',
'M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z','a',
'b','c', 'd', 'e','f','g','h','i','j','k','l','m','n','o','p',
'q','r','s','t','u','v','w','x','y','z']
numbers = ['1','2','3','4','5','6','7','8','9','0']
characters = ['+','(',')','*','%','^','$','_','@','=']

no_letters = int(input("How many letters would you like in your password?\n"))
no_numbers = int(input("How many number would you like?\n"))
no_characters = int(input("How many symbols would you like?\n"))

for x in range(0,no_letters):
    password += random.choice(letters)

for x in range(0,no_numbers):
    password += random.choice(numbers)

for x in range(0,no_characters):
    password += random.choice(characters)

random.shuffle(password)

new_password = ""

for char in password:
    new_password += char

print(f"Your password is {new_password}")

#-------------------------------------------------------------------