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Python Python Collections (Retired) Dictionaries Teacher Stats

Posted by Imer Pacheco
Imer Pacheco
9,732 Points

Regarding the stats function challenge in the Python Collections lesson.

My code is evaluating perfectly inside of Workspaces but does not pass the challenge and I do not see a reason why it should not. Any clues as to what is stopping my code from passing would be greatly appreciated. 

teacher_stats = []
teacher_name = " "

def most_classes(teachers):
    max_count = 0

    for key in teachers:
        classes = teachers[key]
        count = len(classes)

        if count > max_count:
            max_count = count
            teacher_name = key
        else:
            continue

    return(teacher_name)

def num_teachers(teachers):
    for key in teachers:
        total_teachers = len(teachers)

    return(total_teachers)

def stats(teachers):
    for key in teachers:
        a_stat = []
        name = key
        classes = teachers[key]
        count = len(classes)
        a_stat.append("{}, {}".format(name, count))
        teacher_stats.append(a_stat)

    return(teacher_stats)

3 Answers

Josh Keenan
Josh Keenan
20,315 Points
Josh Keenan
Josh Keenan
20,315 Points

Here's my answer:

def stats(teachers):
    a_stat = []
    for key in teachers:

        name = key
        classes = teachers[key]
        count = len(classes)
        list1 = [key, count]
        a_stat.append(list1)


    return(a_stat)

You were returning a string, you needed to return a list, but you created a global variable and ended up doing it in a complex way, keep it simple! Avoid global variables!

Imer Pacheco
Imer Pacheco
9,732 Points

Thanks for showing me the way, Mr. Keenan. Thanks to your guidance I was able to pass the remaining stages in the lesson, allowing me to advance to the Tuples section. I appreciate it!

Josh Keenan
Josh Keenan
20,315 Points
Josh Keenan
Josh Keenan
20,315 Points

What stage are you not passing? Third or fourth?

Imer Pacheco
Imer Pacheco
9,732 Points

Hi Josh,
The third stage regarding the stats function is not passing.