Open source project that a beginner could contribute to?

[Ofnuts]

This is how I normally avoid this:

def main():
    # Declaring the necessary variables and dictionary.
    large, small = 0, 0
    items = {}
    while True:
        # The following is our main menu that the user will see.
        userin = input(
            "Type 'i' to enter new items, 'r' to begin registering new families, or 't' to get currnet total and stats, e is to exit: ")
        if userin.lower() == 'i':
            food_items(items)
        elif userin.lower() == 'r':
            large, small = one_or_two(large, small)
        elif userin.lower() == 't':
            total(large, small, items)
        elif userin.lower() == 'e':
            total(large, small, items)
            final_total(large, small, items)
            break
        else:
            print('An unknown option: ', userin, ' has been entered. Please try the last entry again.')

Much better to do one single:

userin=lower(input("...........")

Otherwise, a dictionary of functions looks like a palatable option.

Or you can add an 'or' statement to the string saying...:

if userin == 'i' or 'I':
    food_items(items)

Certainly not:

if userin == 'i' or userin =='I':
   food_items(items)

or

if userin in ['i','I']:
   food_items(items)