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Python

Jordan Pierre
Jordan Pierre
16,601 Points
Posted by Jordan Pierre
Jordan Pierre
16,601 Points

Question about why my code won't work for the Teacher Stats code challenge

the task asks me to create a function named most_courses that takes our good ol' teacher dictionary. most_courses should return the name of the teacher with the most courses. You might need to hold onto some sort of max count variable.

This is my code:

def most_courses(teachers_list):
    max_value = 0    
    for value in teachers_list.values():
        if len(value) > max_value:
            max_value = value
    print(max_value)

most_courses({'Andrew Chalkley': ['jQuery Basics', 'Node.js Basics'],
  'Kenneth Love': ['Python Basics', 'Python Collections', 'Flask Basics']})

My question is, why won't the greater than operator compare the value to the max value?

1 Answer

Dave Harker
PLUS
Dave Harker
Courses Plus Student 15,510 Points
Dave Harker
Dave Harker
Courses Plus Student 15,510 Points

Hi Jordan Pierre,

You're trying to assign a list into a variable you've defined as an int.

    max_value = 0  # int
    for value in teachers_list.values():
        if len(value) > max_value: 
            max_value = value  # assigning list into int **change this**

Change that to:

            max_value = len(value)  # done

Have fun. Side note: That code won't actually complete the challenge requirements by the way. If that is the 4th challenge you'll need to return which teacher has the most courses, not how many they have. It's only an extra line of code though so based on what you've done so far I'm sure you'll have no trouble returning that value (not printing it).

Keep up the good work, and happy coding.
Dave :dizzy:

Dave Harker
Dave Harker
Courses Plus Student 15,510 Points
Dave Harker
Dave Harker
Courses Plus Student 15,510 Points

Hint: use teachers_list.items() so you can keep track of the busiest teacher also :smile: