Password Manager in Python.
About the project: This is a Password Manager project in Python. This is a self-contained script that allows you to securely store and retrieve your passwords from your console.
This program will be a simple, console-based application that stores password entries (a service name and the corresponding password) in a local file. The data will be saved to a JSON file, so your entries are persistent.
Important Security Note
- This is a basic, educational project.
- The passwords are saved in a simple, non-encrypted format in a local file. Do not use this application to store your real passwords or other sensitive information.
- A real-world password manager would require robust encryption and a master password for security.
As noted above, this project is designed for learning and demonstration.
If you wanted to make a real, secure password manager, the next steps would be to add a master password and implement a strong encryption algorithm (like AES) to protect the data in the passwords.json file.
Project Level: Intermediate
You can directly copy the below snippet code with the help of green copy button, paste it and run it in any Python editor you have.
Steps: Follow these stepsStep 1: Copy below code using green 'copy' button.
Step 2: Paste the code on your chosen editor.
Step 3: Save the code with filename and .py extention.
Step 4: Run (Press F5 if using python IDLE)
# password_manager.py
import json
import os
import getpass # A library to securely read passwords without echoing to the console.
# Filename for storing passwords
PASSWORDS_FILE = "passwords.json"
def load_passwords():
"""
Loads password entries from a JSON file. Returns a dictionary of passwords.
If the file doesn't exist, it returns an empty dictionary.
"""
if os.path.exists(PASSWORDS_FILE) and os.stat(PASSWORDS_FILE).st_size > 0:
try:
with open(PASSWORDS_FILE, 'r') as f:
return json.load(f)
except json.JSONDecodeError:
print("Warning: Passwords file is corrupted or empty. Starting with a new password book.")
return {}
return {}
def save_passwords(passwords):
"""
Saves the passwords dictionary to a JSON file.
"""
with open(PASSWORDS_FILE, 'w') as f:
json.dump(passwords, f, indent=4)
print("Passwords saved successfully.")
def add_password(passwords):
"""
Prompts the user for a new password entry and adds it to the dictionary.
"""
service = input("Enter the service name (e.g., Google, Twitter): ").strip()
if not service:
print("Service name cannot be empty. Password not added.")
return
# Use getpass to hide the password input in the console
password = getpass.getpass("Enter the password: ").strip()
if not password:
print("Password cannot be empty. Password not added.")
return
passwords[service.lower()] = password
print(f"Password for '{service}' added.")
def get_password(passwords):
"""
Retrieves and displays a password for a given service name.
"""
service = input("Enter the service name to retrieve the password for: ").strip()
if not service:
print("Service name cannot be empty.")
return
retrieved_password = passwords.get(service.lower())
if retrieved_password:
print(f"\nPassword for '{service}': {retrieved_password}")
else:
print(f"No password found for service '{service}'.")
def main():
"""
Main function to run the Password Manager app with a menu.
"""
passwords = load_passwords()
print("--- Python Simple Password Manager ---")
while True:
print("\nMenu:")
print("1. Add a new password")
print("2. Get a password")
print("3. Quit and Save")
choice = input("Enter your choice (1-3): ").strip()
if choice == '1':
add_password(passwords)
elif choice == '2':
get_password(passwords)
elif choice == '3':
save_passwords(passwords)
print("Exiting Password Manager. Goodbye!")
break
else:
print("Invalid choice. Please enter a number between 1 and 3.")
# This ensures that main() is called only when the script is executed directly.
if __name__ == "__main__":
main()
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