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Python Python Collections (Retired) Dictionaries Teacher Stats

Rabih Atallah
Rabih Atallah
3,405 Points

Script not not working

it tells me my code is returning 5 classes instead of 18. Please anyone has a suggestion

# 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 most_classes(teachers):
  max_count = 0
  L = []
  for k in teachers.keys():

  for i in teachers.keys():
    if len(teachers[i]) == max(L):
      return i

def num_teachers(teachers):
  G = []
  for Y in teachers.keys():
  return len(G)

def stats(teachers):
  A = []
  B = []
  for t in teachers.keys():
  n = 0
  while n < (len(A) - 1):
    n = n + 2
  return B

def courses(teachers):
  X = []
  for v in teachers.values():
  return X

2 Answers

Chris Freeman
Chris Freeman
Treehouse Moderator 68,423 Points

So VERY close! You got 5 because you were appending the value of each teacher[key], which is a string. 5 teachers gives 5 strings gives 5 returned items. The method you need is extend() in place of append():

def courses(teachers):
  X = []
  for v in teachers.values():
  return X
Rabih Atallah
Rabih Atallah
3,405 Points

Thanks very much Chris!! it worked