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

Posted by Marko Borenovic
Marko Borenovic
1,813 Points

I have no idea how to do this

I really have no idea how to do this challenge

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):
    count = 0
    for amount in teachers.keys():
        count += 1

    return count

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

def courses(list_courses):
    names = []
    for value in list_courses.values():
        names.extend(value)
    return names

def most_courses(most):
    for value in len(most.values()):
        print (keys(max(value)))

3 Answers

Noë Snaterse
PLUS
Noë Snaterse
Courses Plus Student 5,581 Points
Noë Snaterse
Noë Snaterse
Courses Plus Student 5,581 Points

It depends a little whether you are using Python2 or Python3 but here is some pseudocode to get you started.

teachers = {'Andrew Chalkley': ['jQuery Basics', 'Node.js Basics'],
 'Kenneth Love': ['Python Basics', 'Python Collections']}

for name, courses in teachers.iteritems():  # python2
    num = len(courses)
    print name, num

for name, courses in teachers.items():  # python3
    num = len(courses)
    print name, num

Then just keep track of the teacher which has the highest num.

Marko Borenovic
Marko Borenovic
1,813 Points

Thank you very much

Noë Snaterse
PLUS
Noë Snaterse
Courses Plus Student 5,581 Points
Noë Snaterse
Noë Snaterse
Courses Plus Student 5,581 Points

What is the question? That code is that given or did you write is yourself?

Marko Borenovic
Marko Borenovic
1,813 Points
Marko Borenovic
Marko Borenovic
1,813 Points

Create a function named most_courses that takes our good ol' teacher dictionary.

most_courses should return the name of the teacher with the most courses. You might need to hold onto some sort of max count variable.

This is the question. It is fourth step out of 5