use java in python 3.4 with nltk

Question

I want to use stanford-tagger in my project but below error is occur.

  File "C:\Python34\lib\site-packages\nltk\tag\stanford.py", line 59, in tag
    return self.tag_sents([tokens])[0]
  File "C:\Python34\lib\site-packages\hazm\POSTagger.py", line 25, in tag_sents
    return super(stanford.POSTagger, self).tag_sents(refined)
  File "C:\Python34\lib\site-packages\nltk\tag\stanford.py", line 64, in tag_sents
    config_java(options=self.java_options, verbose=False)
  File "C:\Python34\lib\site-packages\nltk\internals.py", line 82, in config_java
    _java_bin = find_binary('java', bin, env_vars=['JAVAHOME', 'JAVA_HOME'], verbose=verbose, binary_names=['java.exe'])
  File "C:\Python34\lib\site-packages\nltk\internals.py", line 544, in find_binary
    binary_names, url, verbose))
  File "C:\Python34\lib\site-packages\nltk\internals.py", line 538, in find_binary_iter
    url, verbose):
  File "C:\Python34\lib\site-packages\nltk\internals.py", line 517, in find_file_iter
    raise LookupError('\n\n%s\n%s\n%s' % (div, msg, div))
LookupError: 

===========================================================================
NLTK was unable to find the java file!
Use software specific configuration paramaters or set the JAVAHOME environment variable.
===========================================================================

NLTK was unable to find the java file! Use software specific configuration paramaters or set the JAVAHOME environment variable.

please help me for set java variable. i use windows 8 64 bit and python 3.4

Idan Str · Accepted Answer · 2019-02-16 01:51:58Z

2

Add it to your code:

java_path = "C:/Program Files/Java/jdk1.8.0_191/bin/java.exe"
os.environ['JAVAHOME'] = java_path

edited Feb 16, 2019 at 1:51

Idan Str

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answered Feb 16, 2019 at 0:13

asifdadra

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Community · Accepted Answer · 2020-06-20 09:12:55Z

1

Here's the Java documentation for setting your path.

Windows 8

Drag the Mouse pointer to the Right bottom corner of the screen
Click on the Search icon and type: Control Panel
Click on -> Control Panel -> System -> Advanced
Click on Environment Variables, under System Variables, find PATH, and click on it.
In the Edit windows, modify PATH by adding the location of the class to the * value for PATH. If you do not have the item PATH, you may select to add a new variable and add PATH as the name and the location of the class as the value.
Close the window.
Reopen Command prompt window, and run your java code.

edited Jun 20, 2020 at 9:12

CommunityBot

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answered Jan 27, 2015 at 6:58

AlexLordThorsen

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1 Comment

AlexLordThorsen Over a year ago

You're welcome Hassan. Please consider upvoting and accepting the answer if this solved your problem.

Hosseinhimself · Accepted Answer · 2021-03-30 08:41:31Z

0

your nltk library can't find the java directory in your computer.

go to nltk library files in your venv and find internals.py in files find this line in the code:

def config_java(bin=None, options=None, verbose=False)

change the code like this:

java_path = "C:/Program Files/Java/jre1.8.0_281/bin/java.exe" #your java file address
os.environ['JAVAHOME'] = java_path
def config_java(bin=java_path, options=None, verbose=False):
...

answered Mar 30, 2021 at 8:41

Hosseinhimself

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