Two solutions in Workspaces, neither accepted by this Challenge

Hello!

If you look at the code attached to this post you'll see I have two commented lines. If I uncomment either of them then I get (what I assume is) the correct answer... but only in Workspaces testing.

The output I get (when using the sample string) is:

{'do': 1, 'it': 1, 'like': 1, 'not': 1, 'sam': 1, 'am': 1, 'i': 2}

I confirmed that this is a dict by doing:

print(type(word_count("I do not like it Sam I Am")))

...which returned <class 'dict'>

Every Key is a string word from the original sentence, lowercased. Every Value is an integer representing the number of times a word appeared in the original sentence.

I get similarly (seemingly) correct results for different strings as well.

But this Challenge/quiz doesn't like either of those two solutions/commented lines.

What am I missing here?

Thanks!

def word_count(stir):
    stir = stir.lower()
    werds = stir.split(' ')
    dikt = {}
    for werd in werds:
        # dikt.update({werd:werds.count(werd)})
        # dikt[werd] = werds.count(werd)
    return dikt