Doctest failing

Mel mwilson at the-wire.com
Sat Sep 10 13:43:38 CEST 2011


Tigerstyle wrote:

> Hi guys.
> 
> I'm strugglin with some homework stuff and am hoping you can help me
> out here.
> 
> This is the code:
> 
> small_words = ('into', 'the', 'a', 'of', 'at', 'in', 'for', 'on')
> 
> def book_title(title):
>     """ Takes a string and returns a title-case string.
>     All words EXCEPT for small words are made title case
>     unless the string starts with a preposition, in which
>     case the word is correctly capitalized.
>     >>> book_title('DIVE Into python')
>     'Dive into Python'
>     >>> book_title('the great gatsby')
>     'The Great Gatsby'
>     >>> book_title('the WORKS OF AleXANDer dumas')
>     'The Works of Alexander Dumas'
>     """
>     new_title = []
>     title_split = title.strip().lower().split()
>     for word in title_split:
>         if title_split[0] in small_words:
>             new_title.append(word.title())
>         elif word in small_words:
>             new_title.append(word.lower())
>         else:
>             new_title.append(word.title())
>     return(' '.join(new_title))
> 
> def _test():
>     import doctest, refactory
>     return doctest.testmod(refactory)
> if __name__ == "__main__":
>     _test()
> 
> All tests are failing even though I am getting the correct output on
> the first two tests. And the last test still gives me "Of" instead of
> "of"
> 
> Any help is appreciated.

I don't know about doctest -- I suspect it wants a structured docstring to 
specify the tests -- but this

        if title_split[0] in small_words:
            new_title.append(word.title())

can't be what you want.

	Mel.




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