Array to get profit (school assignment)

[Larz60+]

A better way to enter a list is:

mylist = [ ]

while True:
    item = raw_input("Enter a value, or type 'quit' to end: ")
    if item == 'quit':
        break
    mylist.append(item)

don't use pythoh types as variable names, naming your list 'list' is a no no!