This look correct to me. It returns four strings in one tuple with the desired formats. Any ideas??

Question

This code will return the correct results. If the word = "hello"

answer: ('HELLO', 'hello', 'Hello', 'olleh')

I added a test to the bottom of the code so it can be easily ran. When submitted I did not have the two test lines in the code.

stringcases.py

def stringcases(word:str):
    results = []

    ## This will change the input to the desired format ##
    wtu = results.append(word.upper())
    wtl = results.append(word.lower())
    wtt = results.append(word.capitalize())

    ## This loop will put the user input into a list backwards / combine that input / add it to the list
    newList = []
    start = -1
    count = 0
    wordLength = len(word)
    for i in word:
        if count < wordLength:
            newList.append(word[start])
            count += 1
            start -= 1
    reverseWord = ''.join(newList)
    results.append(reverseWord)

    ## Makes the new list into a tuple
    new_results = tuple(results)
    return new_results

test = stringcases("HeLlO")
print(test)

Answer 1 · 2018-01-24T12:41:34Z

January 24, 2018 12:41pm

The issue is the third string case. The task asks you to format it with title-casing. With title-casing you have to capitalize the first letter of each word. The capitalize method only capitalizes the first letter of the string, not each word in the string.

So a string like "hello world" would become "Hello world" when passed though the capitalize method, while it should be like this "Hello World" for it to be a valid title-cased string.

Luckily Python does also have a method for title-casing which is simply called title. So if you replace capitalize with title like this:

def stringcases(word:str):
    results = []

    ## This will change the input to the desired format ##
    wtu = results.append(word.upper())
    wtl = results.append(word.lower())
    wtt = results.append(word.title())

    ## This loop will put the user input into a list backwards / combine that input / add it to the list
    newList = []
    start = -1
    count = 0
    wordLength = len(word)
    for i in word:
        if count < wordLength:
            newList.append(word[start])
            count += 1
            start -= 1
    reverseWord = ''.join(newList)
    results.append(reverseWord)

    ## Makes the new list into a tuple
    new_results = tuple(results)
    return new_results

Then your code will work. Though I would like to point out that your string reversal code is a tad overkill. You learned about slices earlier in this course, when using slices you can define a step counter which determines how Python steps though the string or list. If you provide it with a negative step then it will go though the string backwards, which results in it becoming reversed.

So your code can be replaced with this more simple code:

def stringcases(word:str):
    results = []

    ## This will change the input to the desired format ##
    wtu = results.append(word.upper())
    wtl = results.append(word.lower())
    wtt = results.append(word.title())
    wtr = results.append(word[::-1]) # Declare a slice with a step of -1
    new_results = tuple(results)
    return new_results

Since all of the text transform methods are now pretty short, you could even throw them all into one succinct line like this:

def stringcases(word:str):
    return word.upper(), word.lower(), word.title(), word[::-1]

And the code would still be pretty easy to read.

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frank sebring

frank sebring

This look correct to me. It returns four strings in one tuple with the desired formats. Any ideas??

1 Answer

andren

andren