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

What is this challenge asking?

Says that it didn't get the expected output. I'm not sure what it is asking for exactly.

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 stats(teachers):
  result = []
  for item in teachers:
    result.append('{}, {}'.format(item, len(teachers)).split(','))
  return result

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,454 Points

In Task 3, you're asked to: Create a function named stats that takes a dictionary of teachers and returns a list of lists in the format <code>[<name>, <number of classes>]</code>. The input will be the similar to the dictionary shown in the challenge comments.

The expected output will be a "list of lists" where each list is of the format <code>[<name>, <number of classes>]</code>. such as:

[['Jason Seifer', 3], ['Kenneth Love', 2]]