Python, While loop & lists

[ichabod801]

The while loop is easy. If it's based on a variable, you just set that variable to False:

while carry_on:
    ...
    if operation[0].lower() == 'q':
        carry_on = False

Depending on the structure of your program, you can often simplify this to while operation[0].lower() != 'q':.

If you can expect a list like ['Add', '8', 'and', '1'], you just need to get the second and fourth items (with zero-indexing these are operation[1] and operation [3]), convert them to numbers with the built-in int(), and add them together.