knock72.py 文件源码

def getFeature(word_list):
    stemmer = stem.LancasterStemmer()
    # stemmer2 = stem.PorterStemmer()
    feature = defaultdict(lambda: 0)
    for word in word_list:
        if not isStopWords(word):
            word_stem = stemmer.stem(word)
            feature[word_stem] += 1
    return dict(feature)