与nltk一起使用时，麦芽解析器会给出断言错误 [英] malt parser gives assertion error when using it with nltk

问题描述

我正在将malt解析器与python nltk一起使用.我已经成功下载了培训数据并更新了最新的nltk.当我呼叫麦芽分析器时，它给了我一个断言错误.下面是python的代码，其中还包括回溯.

I am using malt parser with python nltk. I have successfully downloaded the training data and updated the latest nltk. When I call the malt parser it gives me an asertion error. Below is the code from python which includes the traceback as well.

 mp = MaltParser("C:/Users/mustufain/Desktop/Python Files/maltparser-1.8.1","C:/Users/mustufain/Desktop/Python Files/maltparser-1.7.2",additional_java_args=['-Xmx512m'])

Traceback (most recent call last):
  File "<pyshell#10>", line 1, in <module>
    mp = MaltParser("C:/Users/mustufain/Desktop/Python Files/maltparser-1.8.1","C:/Users/mustufain/Desktop/Python Files/maltparser-1.7.2",additional_java_args=['-Xmx512m'])
  File "C:\Python34\lib\site-packages\nltk\parse\malt.py", line 131, in __init__
    self.malt_jars = find_maltparser(parser_dirname)
  File "C:\Python34\lib\site-packages\nltk\parse\malt.py", line 72, in find_maltparser
    assert malt_dependencies.issubset(_jars)
AssertionError
>>> 

推荐答案

TL;DR (在 PYTHON3 !!中):

import urllib.request
urllib.request.urlretrieve('http://www.maltparser.org/mco/english_parser/engmalt.poly-1.7.mco', 'C:\\Users\\mustufain\\Desktop\\engmalt.poly-1.7.mco')
urllib.request.urlretrieve('http://maltparser.org/dist/maltparser-1.8.1.zip', 'C:\\Users\\mustufain\\Desktop\\maltparser-1.8.1.zip')
zfile = zipfile.ZipFile('C:\\Users\\mustufain\\Desktop\\maltparser-1.8.1.zip')
zfile.extractall('C:\\Users\\mustufain\\Desktop\\maltparser-1.8.1\\')

然后:

from nltk.parse import malt
mp = malt.MaltParser('C:\\Users\\mustufain\\Desktop\\maltparser-1.8.1\\', "C:\\Users\\mustufain\\Desktop\\engmalt.poly-1.7.mco")
mp.parse_one('I shot an elephant in my pajamas .'.split()).tree()

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