help with my code getting a syntax error

# 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
    max_teachers = ''
    for key in teachers:
      class_count = len(teachers[key])
      if class_count > max_count:
          max_teacher = key
          max_count = class_count 
    return max_teacher   

def num_teachers(teachers):
  teacherNumber = 0;
  for teacher in teachers:
    teacherNumber += 1
  return teacherNumber

def stats(teachers):
    myList = []
    for item in teachers:
      myList.append([item, len(teachers[item])
    return myList