The beginnings of a Koans framework for interactively teaching Python. Created during a coding session at Python Northwest in April 2013. Much more to do :)

learn_python.py

#!/usr/bin/env python3


def introduction():
    print('Welcome to the Python teacher. My job is to teach you how to program.')


def learn_print_literal():
    """
    The 'print' function in Python is used to print words. You only need to tell
    it the words that you want to print! 'print' is passed a sentence inside brackets,
    like 'print('some words').
    """
    user_input = input('Try it for yourself: ')
    
    try:
        eval(user_input)
    except SyntaxError:
        print('Sorry, that is not the way to print in Python. Try again!')
        return False
    else:
        print('Congratulations, that is the right answer!')
        return True


def learn_print_variable():
    """
    A variable is a piece of information stored by a name, i.e. 'x'
    Variables can also be printed, i.e. print(x)
    I have already created a variable called 'x' for you and given it a value:
    If you print the variable, you'll see what value it has
    """
    x = 'message'
    user_input = input('Try it for yourself: ')
    
    try:
        eval(user_input)
    except SyntaxError:
        print('Sorry, that is not the way to print a variable in Python. Try again!')
        return False
    else:
        print('Congratulations, that is the right answer!')
        return True


if __name__ == '__main__':
    introduction()

    questions = [
        learn_print_literal,
        learn_print_variable,
    ] 

    for question in questions:
        print(question.__doc__)
        while not question():
            pass