Why is this function printing the number of keys in a dictionary?

[mafr97]

This is a HOMEWORK problem, that I am struggling with and want to understand.

We are asked to create a function that will take in a dictionary and return the list in ascending order, either alphabetically or numerically.

This is my code:

def dictKeysOnly (dictionary):
    lst = [dictionary]
    lst = sorted(lst)
    return (lst)
print("List in ascending order: ",sorted(dictionary))

Here is what I get when run the function. I know I don't have an input, but usually it just gives a blank box (I'm running this in Jupiter Lab just to test it). Then I'll run it with an input to test the outcome.

Output:
---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-8-3c0c43693ca8> in <module>
      3     lst = sorted(lst)
      4     return (lst)
----> 5 print("List in ascending order: ",sorted(dictionary))

NameError: name 'dictionary' is not defined

I usually miss something when I make a function because it's not always super clear to me, but could someone explain how I define my dictionary input. Also why isn't me inputting 'dictionary' in the function defining it as a parameter?