Loops.py

# Built in print() function used to output results on terminal
# Each learning point is contained within a function that describes the code
# The # and """" syntax is used for single and multiline comments explaining the code

# Loop Types
# For Loop - runs the same code multiple times, once for each value/item in a sequence
# While Loop - keeps running same code multiple times, until something becomes false.

# Loop Control Keywords
# break - exits loop immediately
# continue - skips the rest of the current iteration and moves to the next
# pass - used as a placeholder when syntax requires a block


# For Loops

def Loop_Over_List_Strings():
    """This function is looping through a list of website strings
    and sorting them into categories based on their domain endings."""
    List1 = ["TDglitch.com", "TDglitch.net", "Trent.edu," "TDglitch.edu"]
    DotCom = []
    DotEdu = []
    for item in List1:
        if item.endswith(".com"):
            DotCom.append(item)
        elif item.endswith(".edu"):
            DotEdu.append(item)
        elif item.endswith(".net"):
            pass
    print(DotCom)
    print(DotEdu)


def Loop_Over_List_Numbers():
    """In the for loop, the round function was used to limit the amount of decimals on
    the float being output. Round has two arguments round(number to round, amount of decimals)"""
    List1 = [799.56, 1099.89, 50.99, 60.25, 90.90, 12.10]
    List2 = []
    Tax = 1.0825
    for number in List1:
        List2.append(round(number * Tax, 2))
    print(List2)


def Loop_Over_Range():
    for n in range(0, 21):
        print(n * 2)


def Loop_Over_String():
    """The `, end = ""` argument within the print function keeps all
    of the output from the for loop on one line instead of moving
    to a new line each time it loops. normally the print function ends
    with `\n` which prints then moves to a new line"""
    for letter in "hello trent":
        print(letter.capitalize(), end="")


def Loop_over_Dict():
    User_Age_Dict = {"Trent": 27, "Jerry": 12,
                     "Karen": 23, "Jim": 18, "Freddy": 16}
    Deny_Dict = {}
    Allow_Dict = {}
    for key, value in User_Age_Dict.items():
        if value < 18:
            Deny_Dict.update({key: value})
        elif value >= 18:
            Allow_Dict.update({key: value})
    print(f"ACCES ALLOWED{Allow_Dict}, ACCESS DENIED{Deny_Dict}")