Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Python Collections (Retired) Dictionaries Teacher Stats

Return number of teachers. Expected 5 got 2. There are only two teachers int the dictionary

The prior step didn't like me using my own dictionary of teachers I used the example dictionary. My code works but the answers says it expects five when there are only 2 teachers? Should I just add more teachers to the dictionary? and is this just me misunderstanding the wording or is it a bug?

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.

master_class_list =  {'Jason Seifer': ['Ruby Foundations', 'Ruby on Rails Forms', 'Technology Foundations'], 'Kenneth Love': ['Python Basics', 'Python Collections']}


def most_classes(master_class_list): 
    max_count = 0
    most_busy_teacher = ''
    for teacher in master_class_list:
        classes = master_class_list[teacher]
        if len(classes) > max_count:
            max_count = len(classes)
            most_busy_teacher = teacher
    print(most_busy_teacher)
    print(max_count)
    return most_busy_teacher

def num_teachers(dict): 
    count = 0
    for teacher in master_class_list:
        count +=1 
    print(count)
    return count


most_classes(master_class_list)
num_teachers(master_class_list)

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,441 Points

It is not necessary to use your own data. It is supplied by the challenge grader. The code error is in not using the passed argument dict. Instead, you are using your own data master_class_list.

def most_classes(master_class_list): 
    max_count = 0
    most_busy_teacher = ''
    for teacher in master_class_list:
        classes = master_class_list[teacher]
        if len(classes) > max_count:
            max_count = len(classes)
            most_busy_teacher = teacher
    print(most_busy_teacher)
    print(max_count)
    return most_busy_teacher

def num_teachers(dict): 
    count = 0
    for teacher in dict:  # <-- changed to dict
        count +=1 
    print(count)
    return count