如何从代码配置nltk数据目录？

Question

如何通过代码配置nltk数据目录？

Answer 1

我使用了append，举个例子

nltk.data.path.append('/libs/nltk_data/')

Answer 2

从这段代码来看，http://www.nltk.org/_modules/nltk/data.html：

``nltk:path``: Specifies the file stored in the NLTK data
 package at *path*.  NLTK will search for these files in the
 directories specified by ``nltk.data.path``.

然后在代码中：

######################################################################
# Search Path
######################################################################

path = []
"""A list of directories where the NLTK data package might reside.
   These directories will be checked in order when looking for a
   resource in the data package.  Note that this allows users to
   substitute in their own versions of resources, if they have them
   (e.g., in their home directory under ~/nltk_data)."""

# User-specified locations:
path += [d for d in os.environ.get('NLTK_DATA', str('')).split(os.pathsep) if d]
if os.path.expanduser('~/') != '~/':
    path.append(os.path.expanduser(str('~/nltk_data')))

if sys.platform.startswith('win'):
    # Common locations on Windows:
    path += [
        str(r'C:\nltk_data'), str(r'D:\nltk_data'), str(r'E:\nltk_data'),
        os.path.join(sys.prefix, str('nltk_data')),
        os.path.join(sys.prefix, str('lib'), str('nltk_data')),
        os.path.join(os.environ.get(str('APPDATA'), str('C:\\')), str('nltk_data'))
    ]
else:
    # Common locations on UNIX & OS X:
    path += [
        str('/usr/share/nltk_data'),
        str('/usr/local/share/nltk_data'),
        str('/usr/lib/nltk_data'),
        str('/usr/local/lib/nltk_data')
    ]

要修改路径，只需在可能的路径列表后面添加即可：

import nltk
nltk.data.path.append("/home/yourusername/whateverpath/")

或者在Windows系统中：

import nltk
nltk.data.path.append("C:\somewhere\farfar\away\path")

Answer 3

只需要修改一下 nltk.data.path 里的内容就可以了，它其实就是一个简单的列表。