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

Kade Carlson
Kade Carlson
5,928 Points

Not sure what to do for the task

I've been trying this for a couple days and I still can't get it

# 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(val):
    for prop in val:
        return len(val)

def num_courses(val):
    course = 0
    for item in val.values():
        course += len(item)
    return course

def courses(val):
    all_courses = []
    for prop in val:
    return all_courses

def most_courses(val):
    for prop in val:
        v = max(len(val.values()))
    return prop[v]

1 Answer

These are one liners to solve all of it reply if you need more help

num_teachers = lambda arg: len(arg.keys())
num_courses = lambda arg: sum([len(c) for c in arg.values()])
courses = lambda arg: [c for s in arg.values() for c in s]
most_courses = lambda arg: [t for t, c in sorted(arg.items(), key=lambda a: len(a[1]), reverse=True)][0]
stats = lambda arg: [[t, len(c)] for t, c in arg.items()]