Teacher Stats, Task 3

Question

Hi.

Can anyone see what's wrong with this please?

I'd appreciate any help.

Cheers

Sean :-)

teachers.py

# The dictionary will be something like:
# {'Jason Seifer': ['Ruby Foundations', 'Ruby on Rails Forms', 'Technology Foundations'],
#  'Kenneth Love': ['Python Basics', 'Python Collections']}
#
# Often, it's a good idea to hold onto a max_count variable.
# Update it when you find a teacher with more classes than
# the current count. Better hold onto the teacher name somewhere
# too!
#
# Your code goes below here.
def most_classes(teachers_dict):
    count = 0
    for key in teachers_dict:
        if len(teachers_dict[key]) > count:
            count = len(teachers_dict[key])
            answer = key

    return answer

def num_teachers(teachers_dict):
    return len(teachers_dict)

def stats(teachers_dict):
    int num_of_classes = []
    for teacher_name in teachers_dict:
        new_list = [teacher_name, len(num_of_classes)]
        num_of_classes.append(new_list)
    return num_of_classes

Answer 1 · 2016-11-15T00:22:14Z

November 15, 2016 12:22am

Hi Sean,

You are very close but there are a couple things to note

First you don't have to declare a variable as an "int" as you are doing with num_of_classes. Python doesn't require the definition of variable types. This variable is an empty list, so its simply:

num_of_classes = []

The second thing is in your for loop with the variable "new_list". You have the right idea, but notice how you are using len(num_of_classes). You have initially defined num_of_classes as an empty list so its length will be zero right from the start. What you actually want to extract out of teachers_dict, along with teacher_name, is the associated value in the dictionary. So it would look like this:

        new_list = [teacher_name, len(teachers_dict[teacher_name])]

The rest of your code looks good and changing these two things should make it work.

Hope this helps.

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Sean Flanagan

Sean Flanagan

Teacher Stats, Task 3

1 Answer

Ryan S

Ryan S

Sean Flanagan

Sean Flanagan