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Python

Keith Whatling
Keith Whatling
17,759 Points
Posted by Keith Whatling
Keith Whatling
17,759 Points

Teacher Stats, code works but wont pass the test? Any ideas.

Hi,

I am trying to pass the updated collections course in Python, I cannot get passed the Teachers Stats at the end of the Dictionary section.

The task: In this last challenge, I want you to create a function named stats and it'll take our teacher dictionary as its only argument. stats should return a list of lists where the first item in each inner list is the teacher's name and the second item is the number of courses that teacher has. For example, it might return: [["Kenneth Love", 5], ["Craig Dennis", 10]]

I get to section five and it tells me that task 4 is no longer passing.

def stats(arg):
    to_return = []
    for teacher, courses in arg.items():
        to_return.append([teacher, len(courses)])
    return to_return

and below is the full code.

def num_teachers(arg):
    return len(arg)

def num_courses(arg):
    return  sum([len(courses) for courses in arg.values()])

def courses(arg):
    return [course for courses in arg.values() for course in courses]

def most_courses(arg):
    maxnum = 0
    to_return = ''
    for teacher, courses in arg.items():
        if len(courses) > maxnum:
            to_return = teacher
    return to_return

# Task 5

def stats(arg):
    to_return = []
    for teacher, courses in arg.items():
        to_return.append([teacher, len(courses)])
    return to_return

Very frustrating! as it works in python ide.

2 Answers

Steven Parker
Steven Parker
243,318 Points
Steven Parker
Steven Parker
243,318 Points

Your task 4 code really doesn't pass.

I'm guessing it did once, so you got to task 5, but right now it won't pass. You never update maxnum, so every teacher tested will seem like the one with the most courses, and the function will always return the last one.