
from nltk.corpus import stopwords
from nltk.tokenize import word_tokenize

example = "This is a sample sentence, showing off the stop words filtration."
stop_words = set(stopwords.words('english'))

print stop_words


word_tokens = word_tokenize(example)
#filtered_sentence = [w for w in word_tokens if not w in stop_words]

filtered_sentence = []

for w in word_tokens:
    if w not in stop_words:
        filtered_sentence.append(w)

print(word_tokens)
print(filtered_sentence)

#output filtered sentence
#['This', 'sample', 'sentence', ',', 'showing', 'stop', 'words', 'filtration', '.']
