Getting error of 'int' object is not iterable.

Question

Trying to count the number of teachers that occurs in a dict. I was trying to turn key values into a list, count the number of times a name occurs in a list (ideally every teacher would only occur once.), and then sum the list of integers.

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 num_teachers(my_dict):
    my_list = []
    for key in my_dict:
        my_list.append(key)
        counted_list = my_list.count(key)
        total_integer = sum(counted_list)
    return total_integer

Answer 1 · 2017-11-09T19:29:50Z

November 9, 2017 7:29pm

There is a lot of code there, easy to write lots but the trick is to read the question. I have done it loads of times only to be left with one blooming line! :)

Kenneth is asking how many teachers there are. So the dict is a teachers name as the key then the values are a list of courses.

So thinking algorithmically how about you just return the length of the dict.

def num_teachers(teach_dict):
    return len(teach_dict)

Give me a shout if you get stuck on the next bit, towards the end of the challenge it gets a little tricky but try and keep it simple.

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Andrew McLane

Andrew McLane

Getting error of 'int' object is not iterable.

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Keith Whatling

Keith Whatling