Stanford Parser and NLTK

Question

Is it possible to use Stanford Parser in NLTK? (I am not talking about Stanford POS.)

Answer 1

Deprecated Answer

The answer below is deprecated, please use the solution on https://stackoverflow.com/a/51981566/610569 for NLTK v3.3 and above.

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Edited

As of the current Stanford parser (2015-04-20), the default output for the lexparser.sh has changed so the script below will not work.

But this answer is kept for legacy sake, it will still work with http://nlp.stanford.edu/software/stanford-parser-2012-11-12.zip though.

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Original Answer

I suggest you don't mess with Jython, JPype. Let python do python stuff and let java do java stuff, get the Stanford Parser output through the console.

After you've installed the Stanford Parser in your home directory ~/, just use this python recipe to get the flat bracketed parse:

import os
sentence = "this is a foo bar i want to parse."

os.popen("echo '"+sentence+"' > ~/stanfordtemp.txt")
parser_out = os.popen("~/stanford-parser-2012-11-12/lexparser.sh ~/stanfordtemp.txt").readlines()

bracketed_parse = " ".join( [i.strip() for i in parser_out if i.strip()[0] == "("] )
print bracketed_parse