How to Create Your Own Random Password Generator in Python

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How to Create Your Own Random Password Generator in Python

Python is an open-source programming language that is widely used in a variety of fields. Python has become the go-to programming language for both novices and expert users, from designing web apps to managing data.

The programming language is widely used to encrypt systems, create passwords, and implement token systems to improve security.

This guide will assist you if you struggle with password generation and desire an automatic password generator at the push of a few clicks.

Why Create a Random Password Generator?

The goal is to use Python to develop a random password generator that will assist you in creating a strong password(s) for your system (s).

Within Python, you may generate random passwords utilizing a mix of alphabets and special characters by following a set of basic, easy-to-execute instructions.

The password(s) generated will be based on the criteria you give during the coding stage and may include/exclude alphabets, special characters, and digits according to your preferences.

Requisites for Creating a Random Password Generator

Here are some requirements for making your own random password generator:

  • Python’s most recent release: Python is a simple programming language that may be downloaded from the Python website.
  • While anybody can make this password generator, it’s generally helpful to have a basic grasp of how Python works and the different interfaces where you may write in code.

How to Set Up Your Random Password Generator

Depending on your degree of comfort, you can either use Jupyter Notebook or the IDLE version to create code.

Continue with the Jupyter interface for this guide.

Import the Random Module

You must import the random module as part of the first step since you need to produce a collection of random passwords/strings.

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Import the random module into your Python session using the import command:

Import random

Specify a Set of Desired Password Characters

Next, create a new variable containing the alphabets, numerals, and special characters you want to use in your random password. These may be any combination of letters, numbers, and special characters. You may add and delete characters as you see fit.

The string following is an example of random characters and special symbols.

Chars = “abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ123456789!@#$%^&*()”

When you run this password generator, it will generate a strong password for you by selecting random possibilities from the text supplied above.

Related: How Does the Python String format() Method Work?

Run a Loop to Execute as Per User’s Inputs

To adjust the length of the password, you must now execute a loop. A Python loop will cycle the code a certain number of times until the necessary condition is fulfilled.

In this situation, the loop will prompt the user to specify the length of the random password.

Create the first loop using the while command:

while 1:
password_len = int(input("What length would you like your password to be : "))
password_count = int(input("How many passwords would you like : "))


  • input: The input statement will prompt the user to enter a value.
  • int: Int will transform the value entered by the user into a numeric (integer) value.
  • password len: A new variable that stores the password’s length (user entered value)
  • password count: A new variable that stores the number of passwords that the user needs (user entered value)

Related: How to Use a While Loop in Python

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Define the loop parameters from start to finish. Remember that the beginning position will be 0, and the final point will be determined by the user. This is determined by the value supplied by the user at the password count question.

for x in range(0, password_count):
password = ""


  • x = x is a counter
  • range = Range will collect the user’s beginning and ending values.
  • password = password variable defined with a placeholder of a blank string

Create a Password Generating Loop

To create a password-generating loop, open a loop with another for statement.

for x in range(0, password_len):
password_char = random.choice(Chars)


  • x: x is a counter variable
  • range: The user’s beginning and ending values will be captured by range.
  • password char: A new variable that generates a random set of characters from the string char.
  • random: This is a pre-stored Python module that you loaded in the initial stage (the import statement)
  • choice: As the name implies, it will choose a single character from the set of variables/values. In this example, everytime the loop is performed, it will choose a single value from the chars variable value.

Related: How to Use For Loops in Python

Concatenate the Random Value With the Default Password Value

So far, you’ve produced a default password (blank value) and used a loop to generate random characters. To create a coherent password that you can use, random characters must be put together. To do so, begin concatenating the character values together.

password= password + password_char
print("Here is your random password : " , password)


  • This will mix all of the random values generated by the random and choice statements.
  • print: The print statement will display the findings in an easy-to-understand format.

The final program will look like this:

import random
Chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ123456789!@#$%^&*()"
while 1:
password_len = int(input("What length would you like your password to be : "))
password_count = int(input("How many passwords would you like : "))
for x in range(0, password_count):
password = ""
for x in range(0, password_len):
password_char = random.choice(Chars)
password= password + password_char
print("Here is your random password : " , password)


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In the initial iteration of the code, it will ask the user the length of the passwords. Press Enter as soon as you’ve updated the value.

In the second cycle, you’d be asked how many passwords you want Python to create for you. Enter the value and hit the Enter key.

Python’s password generator will produce random passwords depending on the length and amount of passwords supplied in the last iteration.

To prevent indentation mistakes, preserve the indentation as given in the code above. Also, Python is quite picky about upper and lower-case functions, so take care while defining the syntax statements.

Generating Your Random Password in Python

You may print as many passwords as you like with this software. Simply enter the total length of the passwords as well as the number of passwords required.

The code is simple to understand, and each step is completed step by step so that Python may run the program based on the user’s inputs.

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