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Python Python Collections (2016, retired 2019) Dictionaries Teacher Stats

Marc Vilar
Marc Vilar
8,230 Points

Problem with grader

Here my code def num_teachers(dictionary): return len(dictionary)

def num_courses(dictionary): total=0 for value in dictonary.values(): total+=len(value) return total

And it sasys can't finde num_courses

teachers.py
# The dictionary will look something like:
# {'Andrew Chalkley': ['jQuery Basics', 'Node.js Basics'],
#  'Kenneth Love': ['Python Basics', 'Python Collections']}
#
# Each key will be a Teacher and the value will be a list of courses.
#
# Your code goes below here.

def num_teachers(dictionary):
    return len(dictionary)

def num_courses(dictionary):
    total=0
    for value in dictonary.values():
        total+=len(value)
    return total
Michael Steiner
Michael Steiner
8,378 Points

Check your spelling in your for loop.

for value in dictonary.values():

3 Answers

Marc Vilar
Marc Vilar
8,230 Points

redoing everything did fix it, maybe a character wasn't able to find.

Kenneth Love
STAFF
Kenneth Love
Treehouse Guest Teacher

I've made the error message a bit more explicit for NameErrors. Hopefully that'll prevent any more issues like this.

Marc Vilar
Marc Vilar
8,230 Points

Thanks Kenneth, really enjoying the python course.