odd/even

# while Loop to ask for a Start-Number,
# restarts the Loop if User enters anything else than a Number
while True:

    # trying to convert User-Input to a Number
    # and breaking the Loop on Success
    try:
        start_num = int(input("Enter a Start-Number: "))
        break

    # raising an Error if Input was not a Number
    # and restarting the Loop again
    except ValueError:
        print("Your Input was not a valid Number.")

# same Loop as above, but with a check
# if End-Number is bigger than Start-Number
while True:

    # trying to convert as above
    try:
        end_num = int(input("Enter a End-Number: "))

        # If the Start-Number is bigger than the End-Number
        # L#notify the User about the Issue and restart the Loop
        if end_num <= start_num:
            print("Start-Number is bigger than End-Number")
            raise ValueError

        # break the Loop if everything is correct
        break
    except ValueError:
        print("Your Input was not a valid Number.")

# List-Comprehention, very useful, watch a Tutorial about it
# it is a Loop in 1 Line and transform it to a List

# this will add every Number that has Modulo 0 to even
even = [i  for i in range(start_num, end_num) if i % 2 == 0 ]

# this will add every Number that has Modulo 1 to odd
odd = [i  for i in range(start_num, end_num) if i % 2 == 1 ]

# Printing the Results of the above Lists
print(f"Sum of all even Numbers: {sum(even)}")
print(f"Sum of all odd Numbers: {sum(odd)}")