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annotate g_tokenize.py @ 3:0df72a8ab095 draft default tip

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planemo upload for repository https://github.com/Alveo/alveo-galaxy-tools commit f2432aaedd36ae7662873623d8861d0982dffdd2
author stevecassidy
date Mon, 20 Nov 2017 22:52:11 -0500
parents a47980ef2b96
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1 import nltk
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2 import string
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3 import argparse
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5 nltk.download('punkt', quiet=True)
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8 def arguments():
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9 parser = argparse.ArgumentParser(description="tokenize a text")
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10 parser.add_argument('--input', required=True, action="store", type=str, help="input text file")
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11 parser.add_argument('--output', required=True, action="store", type=str, help="output file path")
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12 parser.add_argument('--lower', required=False, action="store_true", help="lowercase all words")
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13 parser.add_argument('--nopunct', required=False, action="store_true", help="remove all punctuation characters")
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14 return parser.parse_args()
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17 def strip_punct(text):
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18 table = text.maketrans("", "")
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19 return text.translate(table, string.punctuation)
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22 def tokenize(in_file, out_file, lower=False, nopunct=False):
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23 with open(in_file, 'r') as fd:
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24 text = fd.read()
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26 if lower:
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27 text = text.lower()
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28 result = []
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29 # text = unicode(text, errors='ignore')
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30 sentences = nltk.sent_tokenize(text)
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31 for sentence in sentences:
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32 tokens = nltk.word_tokenize(sentence)
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33 if nopunct:
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34 tokens = filter(lambda w: w not in string.punctuation, tokens)
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35 result.append(tokens)
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37 with open(out_file, 'w') as output:
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38 # write one token per line
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39 for sentence in result:
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40 for token in sentence:
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41 output.write(token + "\n")
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44 if __name__ == '__main__':
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45 args = arguments()
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46 tokenize(args.input, args.output, lower=args.lower, nopunct=args.nopunct)