Why does changing key to item make the code work?


Exercise link

Code returns "Oops, try again. compute_bill(['banana', 'apple', 'orange', 'pear']) returned 8 instead of 10.5" when total +=prices[key]

When I change key to item, the code runs. I think it's because key is checking both dictionaries and referencing stock but the math should be 8.5, not 8 unless python was instructed to return an integer or just rounds down from 5.

What is the ELI5? Does item trigger an action or process or something I just don't understand yet?

def compute_bill(food):
    total = 0
    for item in food:
        total += prices[item]
    return total


could you provide the FULL code you are using.....
and the full failed code you tried to use....