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

the course list

my code is here ,may I ask where is my mistake?

def courses(dictionary): all_class=[] for one_class in dictionary.values(): all_class.extend(one_class) return all_class

# 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):
    return len(x)

def num_courses(dictionary):
    for teacher in dictionary:
    return count 

def courses(dictionay):
    for one_class in dictionary.values():
    return all_class

1 Answer

28,558 Points

Your code is logically sound, but you have two typos in it:

def courses(dictionay):

When defining the function you have misspelled dictionary as dictionay


And you define the list as all_clss instead of all_class

You spell these words correctly everywhere else in your code, so If you fix those two typos then your code will work.

oh~sorry I pasted the wrong one!!!