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 trial
garrettkipps
965 PointsCreate a new function named num_courses that will receive the same dictionary as its only argument.
I don't understand. The course never shows me how to count individual items in a 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(string):
return len(string)
def num_courses(string):
values = string.values()
return values
garrettkipps
965 PointsJust says bummer try again.
Seth Kroger
56,413 PointsWaleed's answer is entirely correct. The dict has values that are lists, so you go through the values and add up the lengths of each list. Make sure your indentation is correct, and it will pass.
Waleed Aljarman
Courses Plus Student 947 PointsWaleed Aljarman
Courses Plus Student 947 Pointsyou should fist make a new value = zero, then loop through the values of the dict and add them to the new value by using len()
def num_courses(t_dict): courses=0 for value in t_dict.values(): courses += len(value) return courses