Find the lenght of a list and assign it to a variable, not working

Hi, I am getting this error when trying to check len() of a list. I need to find out len() of the list, and assign it to a variable called lenght. This is simple and normally I know how to do it, but it doesn't get past the "recheck work". What am I doing wrong here?

Bummer: AssertionError: 'length' not found in 'student_gpas = [4.0, 2.3, 3.5, 3.7, 3.9, 2.8, 1.5, 4.0]\nlenght = len(student_gpas)' : Whoops, looks like the variable length was never created. Check your spelling.

student_gpas = [4.0, 2.3, 3.5, 3.7, 3.9, 2.8, 1.5, 4.0]
lenght = len(student_gpas)