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

Sohail Mirza
Sohail Mirza
Python Web Development Techdegree Student 5,158 Points

why my code does not work.total number of teachers in a dictionary

I need to get the total number of teachers but the following code does not work def num_teachers(teacher): for item in teacher.keys(): print(len(item))

# 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.

1 Answer

19,363 Points

When you loop through the item, each separate item would be something like Andrew Chalkley or Kenneth Love, so by calling len() on the items, you are getting the number of characters each string has not the number of teachers there are. Try to create a count variable, and increase it every time you loop and then return it.

Hope it helps.