How to add dict key it to its own list, then append the sum of its values to same list, then add that list to new list?

Question

Not sure what I am missing here.

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):
    return len(teachers)

def num_courses(courses):
    counter = sum(map(len, courses.values()))
    return(counter)

def courses(courses):
    course_list = []
    for course in courses.values():
        course_list += course
    return course_list

def most_courses(my_dict):
    max_count = 0
    max_class_teacher = ""
    for key,value in my_dict.items():
        temp_count = len(list(filter(bool, value)))
        if max_count < temp_count:
            max_count = temp_count
            max_class_teacher = key
    return max_class_teacher

Answer 1 · 2018-06-16T16:00:13Z

June 16, 2018 4:00pm

Hi Aaron, I assume its the final part of this challenge you're stuck on.

Here's the outline of one possible solution:

Define a stats function which takes the dictionary as a parameter
Create an empty list
Loop through the dictionary argument using the for key, value in dictionary.items(): style loop
Inside the for loop append a list containing the key and the length of the value like: lst.append([key, len(value)])
Return the new list

Hope that helps.

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Aaron Ethier

Aaron Ethier

How to add dict key it to its own list, then append the sum of its values to same list, then add that list to new list?

1 Answer

John Lack-Wilson

John Lack-Wilson