Python Python Collections (2016, retired 2019) Dictionaries Teacher Stats

Wendi Bao
Wendi Bao
1,150 Points

I feel confused for the last part and I hope you could help me

The system just told me try again but I don't know what is wrong

teachers.py
# The dictionary will look something like:
# {'Andrew Chalkley': ['jQuery Basics', 'Node.js Basics'],
#  'Kenneth Love': ['Python Basics', 'Python Collections']}
#
# Each key will be a Teacher and the value will be a list of courses.
#
# Your code goes below here.
def num_teachers(teacher): 
    number = len(teacher)
    return number
def num_courses(teacher):
    courses = 0
    for course in teacher.values():
        courses += len(course)
    return courses
def courses(teachers): 
    course = []
    for teacher in teachers.values():
        course.extend(teacher)
    return course

def most_courses(teacher): 
    max_courses = len(teacher.values()): 
        if courses > max_courses: 
            name = teacher.update(teacher)
            return name

1 Answer

adrian miranda
adrian miranda
10,604 Points

It is often useful to try running your program in python on your local machine.

If you do, you will see an error on the line: max_courses = len(teacher.values()):

What is the colon doing on the end of that line? And why are following lines indented?

There are probably further problems. Think carefully about what max_courses is being set to. And does course get set at all before you reference it?