Changing string value

Question

So I am kind of stuck with this question where I need to know how to change the string value. I know string is immutable but I thought it was still able to be reassigned. Last 3 lines were to test if loop is running properly and the length of lists are measured properly. All seems to be good except assigning a new teacher name string. Could anyone help me with this?

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.

treehouse = {'Kenneth Love': ['Python Basics', 'Python Collections'],
             'Andrew Chalkley': ['jQuery Basics', 'Node.js Basics'],
            'Jinman Kim': ['Foundation of Java', 'HTML & CSS Basics', 'Introduction to C']}

def num_teachers(treehouse):
    num_t = len(treehouse)
    return num_t

def num_courses(treehouse):
    num_c = 0
    for keys in treehouse:
        num_c += len(treehouse[keys])
    return num_c

def courses(treehouse):
    list_c  =[]
    for keys in treehouse:
        list_c += treehouse[keys]
    return list_c

def most_courses(treehouse):
    max = 0
    teacher =""
    for keys in treehouse:
        if len(treehouse[keys]) > max:
            max = len(keys)
            teacher = keys
        #Below lines are for testing
        print(keys)                      
        print(len(treehouse[keys]))
        print(teacher)
    return teacher

Answer 1 · 2019-01-28T16:18:01Z

January 28, 2019 4:18pm

Hi, to make it easier for yourself I would split both the teacher and courses into different variables, you can do this with for teacher, courses in dictionary.items():

Then you can just compare the course length as you were doing.
I'm not sure if setting the built-in function max is what is causing it to not work? I'd have to test that later maybe.

This is what I came up with hopefully it helps:

def most_courses2(dictionary):
    teacher = ''
    maximum = 0

    for teacher, courses in dictionary.items():
        if len(courses) > maximum:
            maximum = len(courses)
            teacher = teacher

    return teacher

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Jinman Kim

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Changing string value

1 Answer

diogorferreira

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Jinman Kim

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