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Python Python Collections (Retired) Dictionaries Teacher Stats

Posted by john larson
john larson
16,594 Points

I have an answer that passes this challenge, but I'm wondering...

What would the code look like If we only used stuff that was taught so far in this course. Or is that not even the point. I think I get that the "gotcha" for this one is that we can't use lists to store teachers because the number of teachers would change.

  • here is the code I'm going with
teachers_dict =  {
'Jason Seifer': [
'Ruby Foundations', 'Ruby on Rails Forms', 'Technology Foundations'],
 'Kenneth Love': [
 'Python Basics', 'Python Collections']
}

def most_classes(teachers):
    final_teacher = None
    class_count = 0
    for teacher, classes in teachers.items():
        if len(classes) > class_count:
            final_teacher = teacher
            class_count = len(classes)
    return final_teacher


x = most_classes(teachers_dict)
print(x)
Jason Anello
Jason Anello
Courses Plus Student 94,610 Points

Hi John,

I don't remember exactly what you've been taught up to this point but if you want to point out anything you think you weren't taught yet then I can try to rewrite it for you more in line with what you've been taught.

Maybe the .items() method wasn't covered yet but that's all I'm really seeing.

john larson
john larson
16,594 Points

Hi Jason, thanks for responding. It took some digging but I found one. Apparently most people didn't struggle with this part of the challenge like I did. This is the one I found that I'm going to comb over and see what makes it tick.

max_count = 0
  max_teacher = ''
  for key in teachers:
    class_count = len(teachers[key])
    if class_count > max_count:
      max_teacher = key
      max_count = class_count
  return max_teacher

2 Answers

Aer sdfsd
Aer sdfsd
1,669 Points
Aer sdfsd
Aer sdfsd
1,669 Points

i have pretty much the same code as yours, it works fine in shell. but here it does not pass.

def most_classes(dic):
    count = 0
    name = ""
    for i in dic:
        num = len(dic[i])
        if num > count:
            count = num
            name = i
    return i
Jason Anello
Jason Anello
Courses Plus Student 94,610 Points

You're returning i which is the last teacher you looked at. Try returning name instead.

Aer sdfsd
Aer sdfsd
1,669 Points
Aer sdfsd
Aer sdfsd
1,669 Points

yeah. I have figured that out already aftery looking through the code for 100th time) thanks.