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Python Python Collections (Retired) Slices sillyCase

Posted by Atidaishe Chinodakufa
Atidaishe Chinodakufa
2,323 Points

sillycase

where did i go wrong

silly.py 
# The first half of the string, rounded with round(), should be lowercased.
# The second half should be uppercased.
# E.g. "Treehouse" should come back as "treeHOUSE"
def sillycase(my_string):

  for letter in my_string:
    if index < round(len(my_string)/2):
      my_string = letter.lower()

    else:
      my_string = letter.capitalize()

3 Answers

William Li
PLUS
William Li
Courses Plus Student 26,868 Points
William Li
William Li
Courses Plus Student 26,868 Points

there're some issues with your codes.

  1. no return value
  2. index variable is not declared.
  3. in each run of the the loop, you keep setting my_string to new value, so let's assume your for loop works as advertised, after the loop, my_string will only end up as a single letter.

One way to approach this problem is to slice the string in half, downcase the first half, then upcase the 2nd half, and combine the two back to one string.

def sillycase(string):
  midpoint = round(len(string)/2)
  return string[:midpoint].lower() + string[midpoint:].upper()
Atidaishe Chinodakufa
Atidaishe Chinodakufa
2,323 Points
Atidaishe Chinodakufa
Atidaishe Chinodakufa
2,323 Points

thanks! for the fun of it, is it possible to use a loop to step into like i tried?

William Li
William Li
Courses Plus Student 26,868 Points
William Li
William Li
Courses Plus Student 26,868 Points

Sure, it'd however make the code quite a bit more complex, but for educational purpose, it's good to have curiosity about different way of solving a problem.

def sillycase(string):
  result = ""
  midpoint = round(len(string)/2)
  for index in range(len(string)):
    if index < midpoint:
      result += string[index].lower()
    else:
      result += string[index].upper()
  return result

You see, it makes the code longer and a bit harder to read.

Atidaishe Chinodakufa
Atidaishe Chinodakufa
2,323 Points
Atidaishe Chinodakufa
Atidaishe Chinodakufa
2,323 Points

Great!!