app/django/utils/stopwords.py
author Madhusudan.C.S <madhusudancs@gmail.com>
Sat, 22 Aug 2009 03:56:04 +0530
changeset 2782 3944749338d3
parent 54 03e267d67478
permissions -rw-r--r--
Dotted path to the views in URL patterns is changed to a params parameter. This change makes the URL mapping from URL to View method in patterns generic where the base package path is taken from the params['module_package'] value to support module system of Melange where inherited View classes override the params['module_package'] value to specify their own View methods.

# 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)