return total number

Question

I keep getting error messages that i didn't get the right number for 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(teachers):
    number=len(teachers)
    return number

def num_courses(teachers):
    for teacher in teachers:
        courses=len(teachers)
        courses +=1
        return courses

Answer 1 · 2018-07-25T07:20:04Z

July 25, 2018 7:20am

Hey Matt, You will want to make a variable that will keep count of all of the courses. Remember that this is a dictionary and you want to loop through the values, you can do that by using the .values() method. Take a look how I did the num_courses challenge and let me know if you have questions. I'll try to answer the best I can.

def num_courses(teachers):
    num_courses = 0
    for courses in teachers.values():
        num_courses += len(courses)
    return num_courses

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Mathew Yangang

Mathew Yangang

return total number

1 Answer

Philip Schultz

Philip Schultz

Mathew Yangang

Mathew Yangang

Philip Schultz

Philip Schultz