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Python Python Collections (Retired) Dictionaries Teacher Stats

Lok C
Lok C
10,617 Points
Posted by Lok C
Lok C
10,617 Points

Kept getting the error 'Where's most_classes()?'

Hi, it seems that no matter what I do - i kept getting the error 'Where's 'most_classes()'? Whether it works or not, it's obviously there, not sure how to fix it.

teachers.py 
# The dictionary will be something like:
# {'Jason Seifer': ['Ruby Foundations', 'Ruby on Rails Forms', 'Technology Foundations'],
#  'Kenneth Love': ['Python Basics', 'Python Collections']}
#
# Often, it's a good idea to hold onto a max_count variable.
# Update it when you find a teacher with more classes than
# the current count. Better hold onto the teacher name somewhere
# too!
#
# Your code goes below here.

def most_classes(somedic):
  names = []
  for key in somedic:
    names.append(key)
  num = {}
  for name in names:
    count = 0
    for value in thedic[name]:
      count += 1
      num[name] = count
  max_count = 0
  for key in num.keys():
    if num[key] > max_count:
      most = key
      max_count = num[key]
    else:
      pass
  return most

1 Answer

Amanda Harman
Amanda Harman
11,303 Points

I am not sure why it is throwing down that error in particular, but your code is a lot longer than it has to be. For one, you should not have to create a list to create this function. Dictionaries are really powerful in Python because of their convenient methods for retrieving data. Remember:

for akey in somedic.keys():
    print(akey)

would return each key in the dictionary. In addition:

for akey in somedic.keys():
   print(somedic[akey]))

would return the values associated with each particular key.

So try to approach the problems using the tools available for dictionaries .

Hope this helps!

Amanda Harman
Amanda Harman
11,303 Points

Also the len() function helps a lot for this problem!

Lok C
Lok C
10,617 Points
Lok C
Lok C
10,617 Points

Thank you! I was able to make the code shorter with your suggestion.