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

Marzoog AlGhazwi
Marzoog AlGhazwi
15,796 Points
Posted by Marzoog AlGhazwi
Marzoog AlGhazwi
15,796 Points

Can anyone help me with this !!

I couldn't find a way to return the name of the teacher with most courses How can I make the comparison and return the teacher name?

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.
import itertools
def num_teachers(dictarg):
    return len(dictarg.keys())

def num_courses(dictarg):
    re_list = dictarg.values()
    re_list = itertools.chain(*re_list)
    return len(list(re_list))

def courses(dictarg):
    re_list = dictarg.values()
    chain = itertools.chain(*re_list)
    return list(chain)

def most_courses(dictarg):
    for key, value in dictarg.items():
        tup = key,len(list(value))

1 Answer

billy mercier
billy mercier
6,259 Points
billy mercier
billy mercier
6,259 Points

Loop through the number of teachers, add the len(keys) they have, then the if statement will be looped through to find the highest len(keys). The key point in this exercise is to compare both teachers len(keys).

def most_courses(courses):
    d = []
    winner = ''
    for key, value in courses.items():
        d.append(len(value))
        if len(value) >= len(d):
            winner = key
    return winner