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

Posted by youssef moustahib
youssef moustahib
2,303 Points

I dont understand what is wrong here? It works fine in workspaces

Great work! OK, you're doing great so I'll keep increasing the difficulty. For this step, make another new function named courses that will, again, take the dictionary of teachers and courses. courses, though, should return a single list of all of the available courses in the dictionary. No teachers, just course names!

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 courses(arg):
    newlist = []

    for value in arg.values():
        for item in value:
            newlist.append(item)

    return newlist

def num_courses(arg):
    total = 0
      for value in arg.values():
        for item in value:
            total += 1

    return total

def num_teachers(arg):
    keys = 0
    for key in arg.keys():
        keys += 1

    return keys
youssef moustahib
youssef moustahib
2,303 Points

Anyone?

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,423 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,423 Points

Your so close. An indentation error was introduced in function num_courses: the first for loop is indented farther than the total assignment statement above it.

Post back if you need more help. Good luck!!!