On Apr 3, 8:03 am, Jeff <[EMAIL PROTECTED]> wrote:
> def foo(sample, strings):
> for s in strings:
> if sample in s:
> return True
> return False
>
> This was an order of magnitude faster for me than using str.find or
> str.index. That was finding rare words in the entire word-list (w/
> duplicates) of War and Peace.
If you test against the same substrings over and over again, an
alternative would be to build a regular expression:
import re
search = re.compile('|'.join(re.escape(x)
for x in substrings)).search
p = search(somestring)
if p is not None:
print 'Found', p.group()
George
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