Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community!

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

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

Abrar Fahim
Abrar Fahim
1,071 Points
Posted by Abrar Fahim
Abrar Fahim
1,071 Points

stuck on 1st task need help please

im not sure what to do

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_course):
    dicti = teacher_course.lower()
    dicti = {}
    for num in dicti:
        num += int(dicti)
    return num

1 Answer

Travis Bailey
Travis Bailey
13,673 Points
Travis Bailey
Travis Bailey
13,673 Points

Remember what happens when you call len(), it returns the length of the variable. Like below.

list_a = [1, 2, 3]
len(list_a)  #returns 3