On Mon, 30 Aug 2010 07:44:06 pm Roelof Wobben wrote:
> Hello,
>
>
>
> For a exerise I made this one :"
>
>
>
> import string
>
> def extract_words(s):
[...]
> But now I wonder if this can be done more easerly ?
def extract_words(s):
"""
>>> extract_words('Now is the time! "Now", is the time?')
['now', 'is', 'the', 'time', 'now', 'is', 'the', 'time']
>>> extract_words('she tried to curtsy as she spoke--fancy')
['she', 'tried', 'to', 'curtsy', 'as', 'she', 'spoke', 'fancy']
"""
s = s.lower()
# Replace anything that isn't a letter with a space.
chars = [c if c.isalpha() else " " for c in s]
s = ''.join(chars)
words = s.split()
return words
import doctest
doctest.run_docstring_examples(extract_words, globals())
print extract_words("Hello, world! I ate 6 slices of cheese.")
=> prints:
['hello', 'world', 'i', 'ate', 'slices', 'of', 'cheese']
--
Steven D'Aprano
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