找不到stanford-postagger.jar jar文件

Question

我正在尝试在我的脚本中使用StanfordTokenizer tokenize()，但似乎找不到我订购的CLASSPATH中的jar。

我尝试将_JAR = 'stanford-postagger.jar'更改为C:\Program Files\JetBrains\PyCharm 2017.1.2\stanford-postagger-2016-10-31\'stanford-postagger.jar'，但似乎无效。

这是我的剧本：

from nltk.tokenize.stanford import StanfordTokenizer
def AnalyzeText(text):
     t = StanfordTokenizer(path_to_jar='C:\Program Files\JetBrains\PyCharm 2017.1.2\stanford-postagger-2016-10-31\stanford-postagger.jar')
     return t.tokenize(text)

我确实更新了nltk。我也按你看到的那样下载了stanford-postagger。我无法理解问题所在。

Answer 1

在Python3中，执行一次：

import urllib.request
import zipfile

# Download the file.
urllib.request.urlretrieve(r'http://nlp.stanford.edu/software/stanford-postagger-full-2015-04-20.zip', r'C:\Program Files\JetBrains\PyCharm 2017.1.2\stanford-postagger-full-2015-04-20.zip')

# Initialize a zipfile object.
zfile = zipfile.ZipFile(r'C:\Program Files\JetBrains\PyCharm 2017.1.2\stanford-pos-2015-04-20.zip')

# Unzip the file.
zfile.extractall(r'C:\Program Files\JetBrains\PyCharm 2017.1.2\stanford-pos')

然后：

from nltk.tokenize.stanford import StanfordTokenizer

# First we set the direct path to the NER Tagger.
_path_to_jar = r'C:\Program Files\JetBrains\PyCharm 2017.1.2\stanford-pos\stanford-postagger-full-2015-04-20\stanford-postagger.jar'

# Then we initialize the NLTK's Stanford Tokenizer.
st = StanfordTokenizer(path_to_jar= _path_to_jar)

st.tokenize(text)

Answer 2

似乎ClASSPATH没问题。 NLTK需要JDK 1.8版本。

import os
java_path = "C:/Program Files/Java/jdk1.8.0_131/bin/java.exe"
os.environ['JAVAHOME'] = java_path