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

Posted by garrettkipps
garrettkipps
965 Points

The function should return the total number of courses for all of the teachers.

What am I doing wrong?

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(string):
    return len(string)

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

1 Answer

andren
andren
28,558 Points
andren
andren
28,558 Points

The issue is that the return statement is placed inside the for loop. Which means that your function will return during the first iteration of the loop. Because of that the number you return will only contain the results of running the loop once.

If you move the return statement outside the loop like this:

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

Then your code will work.