need help

Matthew Hill did a pretty good job describing how to go about solving this challenge but I'll expand on it a bit.

You currently have:

def loopy(items):
    for x in y 
    # do something

So the loopy function takes in a single parameter, in this case items. Let's say items is a list that contains four items:

items = ['eggs','milk','STOP','cheese']

In order to iterate over each item in the list we need a for loop, which you have. The structure of a for loop in python is as follows, disregard the quotation marks:

for "variable" in "what you're iterating over":
    do something

To create our for loop we need a variable, which can be anything that follows variable naming conventions, i'll use "item". Next we need the keyword "in", without the quotes, and what we are iterating over in this case "items" again without the quotes. So we now have:

def loopy(items):
    for item in items:

If we just needed to print the items in this list we would be pretty much done, we would just need to print out each item:

def loopy(items):
    for item in items:
        print(item)

However this challenge needs us to check each item in the list to make sure it not the string "STOP". We accomplish this task with an if else statement which is structured like this:

if "condition":
    do something
else:
    do something else

I this example we'll check if the variable item is equal to a string "STOP". If it is we'll break out of the loop but if it isn't we print out the current item:

if item == "STOP":
    break
else:
    print(item)

So now put it all together:

def loopy(items):
    for item in items:
        if item == "STOP":
            break
        else:
            print(item)

The challenge doesn't need you to call the function but if you did you would see that "eggs milk" is printed out because once the function reaches "STOP" it no longer prints "cheese".