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! While you're at it, check out some resources Treehouse students have shared here.
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 trialSiddharth Pande
9,046 Pointsdont know how to flatten list
don't know how to flatten list
# 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(tree_dict):
intr = len(tree_dict)
return intr
def num_courses(tree_dict):
values = list(tree_dict.values())
intrval = len(values)
return intrval
1 Answer
Steven Parker
231,236 PointsOne method would be to loop through each of the dictionary entries, adding up the number of courses in each one.