app/django/utils/stopwords.py
author Todd Larsen <tlarsen@google.com>
Sat, 04 Oct 2008 07:17:00 +0000
changeset 282 600e0a9bfa06
parent 54 03e267d67478
permissions -rw-r--r--
A site layout ("site map") of the web application, including URL regular expression patterns, Django views, and metadata for constructing sidebar menus and (eventually) breadcrumbs. One function, soc.logic.site.map.getDjangoUrlPatterns(), converts these details into urlpatterns for use by Django. Patch by: Todd Larsen Review by: to-be-reviewed

# Performance note: I benchmarked this code using a set instead of
# a list for the stopwords and was surprised to find that the list
# performed /better/ than the set - maybe because it's only a small
# list.

stopwords = '''
i
a
an
are
as
at
be
by
for
from
how
in
is
it
of
on
or
that
the
this
to
was
what
when
where
'''.split()

def strip_stopwords(sentence):
    "Removes stopwords - also normalizes whitespace"
    words = sentence.split()
    sentence = []
    for word in words:
        if word.lower() not in stopwords:
            sentence.append(word)
    return u' '.join(sentence)