psutil.AccessDenied when using StanfordCoreNLP in Pycharm? [duplicate]

问题

# coding=utf-8

from stanfordcorenlp import StanfordCoreNLP

nlp = StanfordCoreNLP(r'/Users/silas/stanford-corenlp/', lang='zh')

sentence = '清华大学位于北京。'
print nlp.word_tokenize(sentence)
print nlp.pos_tag(sentence)
print nlp.ner(sentence)
print nlp.parse(sentence)
print nlp.dependency_parse(sentence)

nlp.close()

I'm using Mac. Java, NLKT, and Stanforcorenlp toolkit are all ready. When I'm testing the project, the error came out.

Traceback (most recent call last):
  line 5, in <module>
    nlp = StanfordCoreNLP(r'/Users/silas/stanford-corenlp/', lang='zh')
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/stanfordcorenlp/corenlp.py", line 79, in __init__
    if port_candidate not in [conn.laddr[1] for conn in psutil.net_connections()]:
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/psutil/__init__.py", line 2120, in net_connections
    return _psplatform.net_connections(kind)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/psutil/_psosx.py", line 255, in net_connections
    cons = Process(pid).connections(kind)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/psutil/_psosx.py", line 347, in wrapper
    raise AccessDenied(self.pid, self._name)
psutil._exceptions.AccessDenied: psutil.AccessDenied (pid=25422)

I guess it is because the Pycharm project isn't running under a root user. But how can I configure the IDE to fix the problem?

回答1:

Unfortunately, if you look at the psutil project in _psosx.py, under net_connections, line 243 says..

Note: on macOS this will fail with AccessDenied unless the process is owned by root.

That means that you'll need to run as root by doing something like sudo pycharm.sh.

If you don't want to run your entire IDE as root, there's a few examples on SO on how you can run a specific script with super-user privileges. For instance see Debugging in pyCharm with sudo privileges.

回答2:

This problem seems to be specific to Mac OS X which would not allow Python to check the current port.

Comment this portion of code of corenlp.py file:

        if self.port is None:
        for port_candidate in range(9000, 65535):
            if port_candidate not in [conn.laddr[1] for conn in psutil.net_connections()]:
                self.port = port_candidate
                break

        if self.port in [conn.laddr[1] for conn in psutil.net_connections()]:
            raise IOError('Port ' + str(self.port) + ' is already in use.')

Replace by this line: