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Einars Vilnis
8,050 PointsIreally dont get the last question in making function for list of lists
it shows me allways error and i dont even get it def stats(profile): max_teacher = [] for key in profile: max_teacher.append(key) for value in profile.values(): max_teacher.append(len(profile[key])) return max_teacher
# The dictionary will be something like:
dictst = {'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(teachers):
max_count = 0
max_teacher = ''
for key in teachers:
class_count = len(teachers[key])
if class_count > max_count:
max_teacher = key #You have to reassign max_count to have the current
max_count = class_count #class count here
return max_teacher
def num_teachers(teachers):
count = 0
for keys in teachers:
count += 1
return count
def stats(profile):
max_teacher = []
for key in profile:
max_teacher.append(key)
for value in profile.values():
max_teacher.append(len(profile[key]))
return max_teacher
2 Answers
Robert Richey
Courses Plus Student 16,352 PointsHi Einars,
Final Edit? :)
OK, so we need to return a list of lists in the format [name, number of classes]. The issue I see - and have compared against my working version, is that you have two for loops in the stats function. When the first for loop is done, max_teacher will be a list of teacher names ['Kenneth', 'Andrew', 'Joy'] etc. Then, after the second for loop runs, their number of classes are being appended to the end of max_teacher resulting in something like
['Kenneth', 'Andrew', 'Joy', 7, 5, 4]
but what we need is
[['Kenneth', 7], ['Andrew', 5], ['Joy', 4]]
We can do everything we need in just one for loop.
def stats(profile):
max_teacher = []
for key in profile:
# create a list containing the teacher and their number of classes ['Kenneth', 7]
# append this list to max_teacher
return max_teacher
I'm trying to not give the exact answer here, but if you continue to have issues please let me know and I'll show you my working code.
Best Regards
Einars Vilnis
8,050 Pointsthanks. will give it a shot i got Your idea
Robert Richey
Courses Plus Student 16,352 PointsRobert Richey
Courses Plus Student 16,352 PointsUpdated Answer