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Python Python Collections (2016, retired 2019) Slices sillyCase

Christopher Shanor
PLUS
Christopher Shanor
Courses Plus Student 2,537 Points
Posted by Christopher Shanor
Christopher Shanor
Courses Plus Student 2,537 Points

Sillyness in Sillycase: Python Collections Challenge

Not sure why this code doesn't pass the challenge. I have tested in the console and I receive "sillYCASE".. any ideas?

sillycase.py 
silly = "Sillycase"

def sillycase(silly):
    first_half = silly[:int(len(silly)/2)].lower()
    second_half = silly[4:].upper()
    return(first_half + second_half)

2 Answers

james south
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james south
Front End Web Development Techdegree Graduate 33,271 Points
james south
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james south
Front End Web Development Techdegree Graduate 33,271 Points

your first half is responsive to various word lengths, but your second half arbitrarily starts at 4. so you just need to make them the same so that the second half picks up where the first half leaves off.

Christopher Shanor
Christopher Shanor
Courses Plus Student 2,537 Points
Christopher Shanor
Christopher Shanor
Courses Plus Student 2,537 Points

I don't understand. If the string I provided (Sillycase) is used, the second_half variable does pick up where first_half leaves off. Even if "Treehouse" is used as the string, it has the same number of letters as "Sillycase". The returned value is sillYCASE. I could see it failing if a different length string was used.

Granted, I didn't use // integer division, but didn't think it was required.

james south
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james south
Front End Web Development Techdegree Graduate 33,271 Points
james south
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james south
Front End Web Development Techdegree Graduate 33,271 Points

no, floor division is not required, it's just an alternate way to end up with an integer. you should expect that the autograder is using a variety of unseen test cases on the code you submit, such that writing code that works on the examples they provide may not be sufficient to pass a given challenge. note that the challenge does not actually ask you to put a string into a variable, and that in any event giving a variable the same name as a subsequent function parameter does not create any relation between them. the code isn't being called with the variable as the argument. they ignored the silly = 'sillycase' line and ran your code with unseen test cases, which is why it must be responsive to words of different lengths.

Mark Miller
Mark Miller
45,831 Points
Mark Miller
Mark Miller
45,831 Points

Yeah, James is right, we have to solve it for any case, not just for one example. It looks like an if-else problem exists. To route the letters to either the first or second half to receive lower() upper(). Actually, think it needs if-else inside of a for each loop, because there seems to be no other way to slice the second half, which is > than the first half. I'm trying list.index() inside of an if, inside of a for _ in list. I'm unable to pass this challenge.