Stanford Parser and NLTK

Question

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

Answer 1

Note that this answer applies to NLTK v 3.0, and not to more recent versions.

Here is the windows version of alvas's answer

sentences = ('. '.join(['this is sentence one without a period','this is another foo bar sentence '])+'.').encode('ascii',errors = 'ignore')
catpath =r"YOUR CURRENT FILE PATH"

f = open('stanfordtemp.txt','w')
f.write(sentences)
f.close()

parse_out = os.popen(catpath+r"\nlp_tools\stanford-parser-2010-08-20\lexparser.bat "+catpath+r"\stanfordtemp.txt").readlines()

bracketed_parse = " ".join( [i.strip() for i in parse_out if i.strip() if i.strip()[0] == "("] )
bracketed_parse = "\n(ROOT".join(bracketed_parse.split(" (ROOT")).split('\n')
aa = map(lambda x :ParentedTree.fromstring(x),bracketed_parse)

NOTES:

• In lexparser.bat you need to change all the paths into absolute path to avoid java errors such as "class not found"

• I strongly recommend you to apply this method under windows since I Tried several answers on the page and all the methods communicates python with Java fails.

• wish to hear from you if you succeed on windows and wish you can tell me how you overcome all these problems.

• search python wrapper for stanford coreNLP to get the python version

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