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Printing challenge programs in Python 3.4

I am trying to create programs in python 3.4 all the challenge tasks but unable to print any of the outputs from the function. When I run nothing happens.

Here is the example:

dict_teachers = {'Jason Seifer': ['Ruby Foundations', 'Ruby on Rails Forms', 'Technology Foundations'],
  'Kenneth Love': ['Python Basics', 'Python Collections']}
def most_classes(dict_teachers):
  max_count = 0
  for keys, values in dict_teachers.items():
    if len(values) > max_count:
      max_count = len(values)
      busy_teacher = keys
  return busy_teacher

def num_teachers(dict_teachers):
  return len(dict_teachers.keys())

def stats(dict_teachers):
  teachers_list = []
  for keys in dict_teachers:
    teachers_list.append([keys, len(dict_teachers[keys])])
  return teachers_list

def course(dict_teachers):
  course = []
  for keys in dict_teachers:
  return course
  print (course)

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2 Answers

Kenneth Love
Kenneth Love
Treehouse Guest Teacher

When you run a script (instead of just using it in the Python shell), and your script uses return everywhere (as it usually should), you won't see output because the output went back to Python itself.

Below your code, in your script, add lines like:


Thanks for the help. I got it now.

Matthew Proudman
Matthew Proudman
11,879 Points

when one returns a function unless you tell python what do then a return will just return and nothing with be outputed