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Re: Doctest failing

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On 9/10/2011 7:20 AM, Tigerstyle wrote:
> Hi guys.
>
> I'm strugglin with some homework stuff and am hoping you can help me
> out here.

We appreciate you saying so instead of hiding that this is homework.

> 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())

The key issue is that you want to treat the first word one way (.title 
it) and the rest differently (conditionally .title or not) . So 
immediately separate the first from the rest and then process each. 
There are at least three ways to do the split. Perhaps I should stop 
with this hint, and certainly you should think a bit before reading 
further, but here is what I consider to be the most elegant 3.2 code.
.
,
,
,
.
.
.
     first, *rest = title.strip().lower().split()
     new_title = [first.title()]
     for word in rest:
         if word not in small_words:
             word = word.title()
         new_title.append(word)

>      return(' '.join(new_title))

doctest.testmod() now passes (there is no 'refactory' here)

> def _test():
>      import doctest, refactory
>      return doctest.testmod(refactory)
> if __name__ == "__main__":
>      _test()

-- 
Terry Jan Reedy

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Thread

Doctest failing Tigerstyle <laddosingh@gmail.com> - 2011-09-10 04:20 -0700
  Re: Doctest failing Mel <mwilson@the-wire.com> - 2011-09-10 07:43 -0400
    Re: Doctest failing Tigerstyle <laddosingh@gmail.com> - 2011-09-11 09:36 -0700
  Re: Doctest failing Peter Otten <__peter__@web.de> - 2011-09-10 13:47 +0200
    Re: Doctest failing ting@thsu.org - 2011-09-10 19:12 -0700
      Re: Doctest failing Tigerstyle <laddosingh@gmail.com> - 2011-09-11 09:42 -0700
  Re: Doctest failing Thomas Jollans <t@jollybox.de> - 2011-09-10 13:50 +0200
    Re: Doctest failing Tigerstyle <laddosingh@gmail.com> - 2011-09-11 09:39 -0700
  Re: Doctest failing Alister Ware <alister.ware@ntlworld.com> - 2011-09-10 12:24 +0000
    Re: Doctest failing Chris Angelico <rosuav@gmail.com> - 2011-09-11 01:56 +1000
      Re: Doctest failing Tigerstyle <laddosingh@gmail.com> - 2011-09-11 09:40 -0700
    Re: Doctest failing Ethan Furman <ethan@stoneleaf.us> - 2011-09-11 11:43 -0700
    Re: Doctest failing Chris Angelico <rosuav@gmail.com> - 2011-09-12 11:03 +1000
      Re: Doctest failing Ben Finney <ben+python@benfinney.id.au> - 2011-09-12 11:37 +1000
        Re: Doctest failing Chris Angelico <rosuav@gmail.com> - 2011-09-12 13:06 +1000
          Re: Doctest failing Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-09-12 14:29 +1000
  Re: Doctest failing Terry Reedy <tjreedy@udel.edu> - 2011-09-10 13:59 -0400
    Re: Doctest failing Tigerstyle <laddosingh@gmail.com> - 2011-09-11 04:46 -0700
      Re: Doctest failing Terry Reedy <tjreedy@udel.edu> - 2011-09-11 13:03 -0400
  Re: Doctest failing Terry Reedy <tjreedy@udel.edu> - 2011-09-10 15:36 -0400
  Re: Doctest failing Peter Otten <__peter__@web.de> - 2011-09-10 22:49 +0200
  Re: Doctest failing Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2011-09-10 16:25 -0700
  Re: Doctest failing Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2011-09-10 23:18 -0700
    Re: Doctest failing Tigerstyle <laddosingh@gmail.com> - 2011-09-11 09:43 -0700
      Re: Doctest failing Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2011-09-11 12:37 -0700

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