Importing and using the NLTK corpus
Please, please help. I have a folder filled with text files that I want to use for NLTK parsing. How do I import this as corpus and then run NLTK commands? I put together the code below, but it gave me this error:
raise error, v # invalid expression
sre_constants.error: nothing to repeat
Code:
import nltk
import re
from nltk.corpus.reader.plaintext import PlaintextCorpusReader
corpus_root = '/Users/jt/Documents/Python/CRspeeches'
speeches = PlaintextCorpusReader(corpus_root, '*.txt')
print "Finished importing corpus"
words = FreqDist()
for sentence in speeches.sents():
for word in sentence:
words.inc(word.lower())
print words["he"]
print words.freq("he")
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1 answer
I understand that this issue is related to a known bug (maybe it's a feature?) Which is partially explained in this answer . In short, some regexes about empty things explode.
The source of the error is a string speeches =
. You should change it to the following:
speeches = PlaintextCorpusReader(corpus_root, r'.*\.txt')
Then everything will load and compile just fine.
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