main.py

# main.py 
import time
import os
import sys


def main():
    print()
    print('=' * 50)
    print('Welcome to the Python Vault! - Loading Modules...')
    time.sleep(1)
    print('Choose a module to explore:')
    print('=' * 50)
    print('1. Hello World Intro')
    print('2. Bleh Calculator')
    print('3. Web API Automations')
    print('4. Data Science')
    print('5. Machine Learning')
    print('6. Gui Interactions')
    print('0. Exit')
    print('=' * 50)

    choice = input('Enter choice: ')

    if choice == '1':
        from basics import hello_world
        hello_world.main()
    elif choice == '2':
        from basics import basic_calculator
        basic_calculator.calculator()
    elif choice == '3':
        from intermediate import todo_list
        todo_list.todo_app()
    elif choice == '4':
        from intermediate import bank_system
        bank_system.bank_app()
    elif choice == '5':
        from intermediate import unit_testing
        unit_testing.TestAlgos()
    elif choice == '6':
        from basics import basic_calculator
        basic_calculator.calculator()
    elif choice == '0':
        print('Exiting...')
    else:
        print('Invalid choice.')

if __name__ == "__main__":
    main()