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

Posted by Reynaldo Ponte
Reynaldo Ponte
669 Points

hi guys,I am returning 5 when i should return 18 courses. It passes in IDEL 3.xx but not here.

hi guys. i got to the last part of the challenge fine but the treehouse shell keeps telling me that I am returning 5 when i should return 18 courses. I ran it IDEL 3.xx it worked fine can you guys help and tell me where i went wrong. thanks so much for your help

this is my code so far.

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

def most_classes(case):
  maax=0
  teacher=[]
  for teach in case:
    if len(case[teach])>= maax:
          maax=len(case[teach])
          teacher=teach

  return teacher

def num_teachers(case):
  Teachers=len(case)
  return Teachers

def stats(case):
    lst=[]
    for teach in case:
      lst.append([teach,len(case[teach])])
    return lst

def courses (case):
  cour=[]
  for items in case:
    cour.append([items,case[items]])
  return cour

3 Answers

Kenneth Love
STAFF
Kenneth Love
Treehouse Guest Teacher
Kenneth Love
Kenneth Love
Treehouse Guest Teacher

The example dictionary shown at the top of the script is just that, an example. The actual dictionary passed to your code in the challenge is much bigger. There really are 18 courses in it :)

Your courses function's append statement is a little weird. Why are you appending a list into the returned list? You should be extending the returned list with the contents of each teacher's course list (their key's value).

Reynaldo Ponte
Reynaldo Ponte
669 Points

Hi kenneth, thanks for you help. well appreciated. I will updated my function the soonest.

Ryan Carson
Ryan Carson
23,287 Points
Ryan Carson
Ryan Carson
23,287 Points

I actually think your code is correct and maybe there's a problem with this Code Challenge. Based on the Dictionary

teachers = {'Jason Seifer': ['Ruby Foundations', 'Ruby on Rails Forms', 'Technology Foundations'], '@[Kenneth Love](https://teamtreehouse.com/kennethlove)': ['Python Basics', 'Python Collections']}

it should return 5 not 18

Kenneth Love, can you please help?

Reynaldo Ponte
Reynaldo Ponte
669 Points
Reynaldo Ponte
Reynaldo Ponte
669 Points

hi Ryan thanks i hope so. ( I mean i hope my code is correct)