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

Youssef Moustahib
Youssef Moustahib
7,779 Points

This works fine in workspaces, but not in the code challenge?

This challenge has several steps so take your time, read the instructions carefully, and feel free to experiment in Workspaces or on your own computer. For this first task, create a function named num_teachers that takes a single argument, which will be a dictionary of Treehouse teachers and their courses. The num_teachers function should return an integer for how many teachers are in the dict.

# 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(x):
    new = []
    for thing in x.keys():
        return len(new)

1 Answer

Hoessein Abd
.a{fill-rule:evenodd;}techdegree seal-36
Hoessein Abd
Python Web Development Techdegree Graduate 19,107 Points

Check your indenting.

Your return statement is inside the loop and because of that you're returning the total of teachers after each iteration of the loop. So let's say you have a dictionary with 10 teachers this will be your output: