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ali sadiki
131 Pointsi don't understand what argument we pass ?
For this first task, create a function named num_teachers that takes a single argument, which will be a dictionary of Treehouse teachers and their courses.
# 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(num):
return {"name":"foo", "age":22}
1 Answer
Philip Schultz
11,437 PointsHey, It's asking you essentially to return the number of key values in the dictionary. You can accomplish this by using the len function.
def num_teachers(arg):
return len(arg)
To be more explicit you could count the keys in the dict.
def num_teachers(arg):
return len(arg.keys())
They both do the same thing.