In this video, I teach Python the way I like to learn it: by building. We create a random password generator in a single main.py file (I’m using Sublime Text) and pull in the right tools from the Python standard library instead of manually typing out character sets. I show you how to use the string module to grab string.ascii_letters, plus string.digits and string.punctuation, then concatenate them into one “pool” of possible password characters. From there, we make the password random with the random module—specifically random.choice()—and repeat that selection in a for loop for as many characters as we want (like 12). I use ''.join(...) to merge the randomly chosen characters into a single password string and print it out. Then we level it up by letting the user choose the password length with input(), converting that input to an int so it works inside range(). Finally, I clean everything up by wrapping the generator logic into a reusable function that takes the length as a parameter. In under five minutes, you’ve got a working script that takes user input and generates a randomized password using built-in Python features.