Some assignment for some college thing :teehee:

procedural_demo.py

print("┌-────────────────────────────-┐   _        ")
print("│ Procedural Programming Demo  │  ( )   _   ")
print("│ With Python!                 │ (_` )_('>  ")
print("├─────────────────────────────-┤ (__,~_)8   ")
print("│                              │    _YY_    ")
print('""""|""|""^^^|^^^^^^^^^^^"""|""^^^^^^^"""|"^')

def procedure_demo():
    print("\n\nThis demo is actually a procedure in itself, but lets demo one anyway!")
    print("(Comments will help here")

    # Below we're creating a new procedure with the 'def' keyword.
    # When this procedure is ran, it will calculate something and return the value.
    def calculation():
        return int((12 * 8) / (2 * 7))

    # Now instead of copy/pasting that sum everywhere, we can just do this:
    result = calculation()
    print("The result of the procedure is: ", result)

def parameters():

    # This is our function which takes a parameter inside ().
    def add(num1, num2):
        # Inside the function we can do what we want.
        return num1 + num2
    print(add(12,28))

def libraries():
    # Here, we're going to import the 'random' library.
    # Which will allow us to generate a random number.
    import random

    # Now we are using the imported command.
    number = random.random() * 100
    print("Have a random number from 1 to 100:", number)

def loops():
    # int() is used to ensure the input is an integer (Whole number)
    iterations = int(input("How many times should I iterate? "))
    for i in range(iterations):
        # Iterations in Python start counting at 0, so add 1.
        print("You are on iteration", i + 1)

    print("Iteration ended.")

def variables():
    # Here we are assigning "Hello world" to the variable newvar.
    newvar = "Hello world"
    # When we call newvar, it will have the contents we specified.
    print("Current variable contents is:", newvar)
    # Here the variable will be changed to whatever the user specifies.
    newvar = input("What would you like to set it to?")
    # And now it's different!
    print("Variable is now:", newvar)

def localvars():
    # Here we are going to set a value:
    num1 = 100

    def squaresum(num1, num2):
        first = num1 * num1
        second = num2 * num2
        return first + second

    result = squaresum(3,4)
    # ˅ If you uncommented this line, it would return an error.
    # print(second)
    # ^ This is because "second" is just a local variable for that function.
    print("The sum of your numbers squared is:", result)

def conditions():
    num = int(input("Enter a number: "))
    # Only executes if the number is lower than 18.
    if num < 18:
        print("Your number is less than 18!")
    # If the number is 18 or higher but under 23...
    elif num < 23:
        print("Your number is between 18 and 22")
    elif num < 80:
        print("Your number is between 23 and 79!")
    # If none of the others are true....
    else:
        print("Your number is 80 or higher!")

print("\n\nWelcome to the Python demo!")
# Hello, this is an example comment.
# Comments are lines which start with '#'
print("To ensure you understand the logic behind this demo, please read the code comments.")

while True:
    print("\n\nWhich demo would you like to view?")
    print(" - [Procedures] - Basic demonstration of procedures/functions in Python.")
    print("    - [Parameters] - Extension of the procedures example, shows parameter usage.")
    print("    - [LocalVars] - Example of local and global variables with regards to functions.")
    print(" - [Libraries] - Programming libraries and how to import/use them.")
    print(" - [Variables] - Basic variable idea demonstration with examples.")
    print(" - [Loops] - The various types of loops in Python, allowing to repeat code easily.")
    print(" - [Conditions] - Conditional statements for example if and else and elif.")
    print("\nPlease enter a valid demo name (Inside the [] ) or 'exit' to quit.")
    choice = input(">> ")

    if (choice.lower() == "exit"):
        break
    elif (choice.lower() == "procedures"):
        procedure_demo()
    elif (choice.lower() == "loops"):
        loops()
    elif (choice.lower() == "parameters"):
        parameters()
    elif (choice.lower() == "libraries"):
        libraries()
    elif (choice.lower() == "loops"):
        loops()
    elif (choice.lower() == "variables"):
        variables()
    elif (choice.lower() == "localvars"):
        localvars()
    elif (choice.lower() == "conditions"):
        conditions()
    else:
        print("That isn't a valid response!")
    input("\nPress enter to continue...")