passwordmanager.py

import secrets
import string

# Generate a random password
def generate_password(length=16):
    characters = string.ascii_letters + string.digits + string.punctuation
    password = "".join(secrets.choice(characters) for i in range(length))
    return password


# Store a password in a secure way
def store_password(service, username, password):
    # Use a secure hashing function to store the password
    hashed_password = hash_function(password)

    # Store the hashed password in a database or file
    with open("password_database.txt", "a") as f:
        f.write(f"{service},{username},{hashed_password}\n")


# Retrieve a password
def get_password(service, username):
    # Look up the hashed password in the database or file
    with open("password_database.txt") as f:
        for line in f:
            service_, username_, hashed_password_ = line.strip().split(",")
            if service == service_ and username == username_:
                # Use a secure hashing function to compare the stored password with the provided password
                if hash_function(password) == hashed_password_:
                    return password
        return None