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

Trevor McGill
Trevor McGill
1,409 Points
Posted by Trevor McGill
Trevor McGill
1,409 Points

Help with counting courses

I'm trying to differentiate between the keys/values when doing the num_courses function, but I can't get it to count the courses alone. I know that my return statement is off...just trying to figure out a way to count the 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):
    return {num_teachers(dictionary.keys()): len(course) for course in dictionary.values()}

1 Answer

Antonio De Rose
Antonio De Rose
20,885 Points
Antonio De Rose
Antonio De Rose
20,885 Points 
def num_courses(dictionary):
    return {num_teachers(dictionary.keys()): len(course) for course in dictionary.values()}

# few mistakes
# return why is it followed by a curly
# can you try break your code line after line
# does not matter if it wrong, post it back, and I can help you.