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Python Python Collections (2016, retired 2019) Tuples Stringcases

AJ Salmon
AJ Salmon
5,675 Points
Posted by AJ Salmon
AJ Salmon
5,675 Points

Stringcases

It says that my function isn't returning the correct string(s). When I run it in my terminal, it returns:

>>> stringcases('apple')
('APPLE', 'apple', 'Apple', 'elppa')
>>>

I thought this was the desired tuple. I appreciate any insight as to what the challenge actually wants me to return!

stringcases.py 
def stringcases(string):
    uppercase = string.upper()
    lowercase = string.lower()
    titlecase = string[:1].upper() + string[1:].lower()
    reverse = string[::-1]
    tup = (uppercase, lowercase, titlecase, reverse)
    return tup

2 Answers

andren
andren
28,558 Points
andren
andren
28,558 Points

The issue is the title case. Title casing is where each letter in a sentence is capitalized, like the style you'd use on titles of documents and the like. Your code only capitalizes the first letter in the string, which is not enough if the string contains multiple words.

Python actually has a method for title casing strings just like it has for uppercasing and lowercasing them. So you can solve this task by simply using the title method on the third string.

Like this:

def stringcases(string):
    uppercase = string.upper()
    lowercase = string.lower()
    titlecase = string.title()
    reverse = string[::-1]
    tup = (uppercase, lowercase, titlecase, reverse)
    return tup
Wesley Trayer
Wesley Trayer
13,812 Points
Wesley Trayer
Wesley Trayer
13,812 Points

I think it's because the challenge wants you to use .title().

    titlecase = string.title()

Other than that I don't see anything wrong with your code.

Good idea using slices to uppercase the first letter. :)

Wesley Trayer
Wesley Trayer
13,812 Points
Wesley Trayer
Wesley Trayer
13,812 Points

Oops! It didn't tell me somebody else had posted while I was answering.