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

Abdullah Jassim
Abdullah Jassim
4,551 Points
Posted by Abdullah Jassim
Abdullah Jassim
4,551 Points

I ran this on the shell and it returned the right answer. Not sure why my code is wrong.

def num_courses(arg):
    count_courses = 0
    for keys in arg.keys():
        count_courses += 1
        return count_courses
teachers.py 
def num_teachers(arg):
    teachers = int(len(arg))
    return teachers

def num_courses(arg):
    count_courses = 0
    for keys in arg.keys():
        count_courses += 1
        return count_courses

# 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.

1 Answer

Philip Schultz
Philip Schultz
11,437 Points
Philip Schultz
Philip Schultz
11,437 Points

Here is how I did the num_courses challenge. I looped through the dict and counted the length of the values. 

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