app/django/utils/stopwords.py
author Pawel Solyga <Pawel.Solyga@gmail.com>
Mon, 17 Nov 2008 22:21:02 +0000
changeset 502 e1e24c0a4e82
parent 54 03e267d67478
permissions -rw-r--r--
Add new parameters to views: url_name which is name used in urls (instead of using lower entity names) and module_name which is used for constructing django urls. Append changes to all affected files. Fix some title names. Change urls that included underscores like "site_settings" into urls with slash "site/settings". Plus some other minor fixes. Patch by: Pawel Solyga

# 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)