我的编码是
from nltk.parse import malt mp = malt.MaltParser(working_dir="/other/apps/maltparser-1.8.1",mco="engmalt.poly-1.7.mco",additional_java_args=['-Xmx1024m']) print mp.raw_parse("Hello World")
错误是
Traceback (most recent call last): File "malt.py", line 13, in <module> print mp.raw_parse("Hello World") File "/usr/local/lib/python2.7/dist-packages/nltk/parse/malt.py", line 139, in raw_parse return self.parse(words, verbose) File "/usr/local/lib/python2.7/dist-packages/nltk/parse/malt.py", line 126, in parse return self.parse_sents([sentence], verbose)[0] File "/usr/local/lib/python2.7/dist-packages/nltk/parse/malt.py", line 114, in parse_sents return self.tagged_parse_sents(tagged_sentences, verbose) File "/usr/local/lib/python2.7/dist-packages/nltk/parse/malt.py", line 194, in tagged_parse_sents "code %d" % (' '.join(cmd), ret)) Exception: MaltParser parsing (java -Xmx1024m -jar /usr/local/bin/malt.jar -w /other/apps/maltparser-1.8.1 -c engmalt.poly-1.7.mco -i /other/apps/maltparser-1.8.1/malt_input.conlljOba1P -o /other/apps/maltparser-1.8.1/malt_output.conllPLcoTu -m parse) failed with exit code 1
NLTK中的MaltParserAPI仅有一个修补程序，该修补程序修复并稳定了其以前存在的问题：
这是如何在NLTK中使用MaltParser API的示例：
# Upgrade your NLTK. alvas@ubi:~$ cd ~ alvas@ubi:~$ pip install -U nltk # Get the latest MaltParser and model alvas@ubi:~$ wget http://maltparser.org/dist/maltparser-1.8.1.zip alvas@ubi:~$ unzip maltparser-1.8.1.zip alvas@ubi:~$ wget http://www.maltparser.org/mco/english_parser/engmalt.poly-1.7.mco # In python, now you can do this: alvas@ubi:~$ python >>> from nltk.parse.malt import MaltParser >>> mp = MaltParser('/home/alvas/maltparser-1.8.1', '/home/alvas/engmalt.poly-1.7.mco') >>> sent1 = 'I shot an elephant in my pajamas .'.split() >>> print(mp.parse_one(sent1).tree()) (shot I (elephant an (in (pajamas my))) .)
（参见这里更多的演示代码或这里的比较详细的演示代码）
请注意，您还可以使用导出功能，并且可以在初始化MaltParser对象时避免使用完整路径。但是您仍然必须告诉对象要查找的解析器目录的名称和模型文件名，例如
MaltParser
alvas@ubi:~$ export MALT_PARSER='/home/$UID/maltparser-1.8.1/' alvas@ubi:~$ export MALT_MODEL='/home/$UID/engmalt.poly-1.7.mco' alvas@ubi:~$ python >>> from nltk.parse.malt import MaltParser >>> mp = MaltParser('maltparser-1.8.1', 'engmalt.poly-1.7.mco') >>> sent1 = 'I shot an elephant in my pajamas .'.split() >>> print(mp.parse_one(sent1).tree()) (shot I (elephant an (in (pajamas my))) .)
