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

mourad marzouk
mourad marzouk
2,361 Points
Posted by mourad marzouk
mourad marzouk
2,361 Points

the tester says it can't find my function

when I hit check work is says it couldn't find num_teachers

def num_teachers (teachers_and_courses): for key in teachers_and_courses.keys(): teachers+=1 return teachers

I dont see whats wrong...

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 (teachers_and_courses):
    for key in teachers_and_courses.keys():
        teachers+=1
    return teachers
mourad marzouk
mourad marzouk
2,361 Points
mourad marzouk
mourad marzouk
2,361 Points

I have tested it many time in workspaces and it works so I don't if this issue is on my side or not. Someone please help.

1 Answer

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,944 Points
KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,944 Points

I added one line to initialize teachers and it passed. Not sure what the difference is though.

def num_teachers (teachers_and_courses):
    teachers = 0
    for key in teachers_and_courses.keys():
        teachers+=1
    return teachers