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
--
http://mail.python.org/mailman/listinfo/python-list
