我在 Python 2.7.6 中安装了 CRF++0.58
当我尝试导入时，我收到以下消息：
>>> import CRFPP
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "CRFPP.py", line 42, in <module>
_CRFPP = swig_import_helper()
File "CRFPP.py", line 34, in swig_import_helper
import _CRFPP
ImportError: No module named _CRFPP
>>>
安装过程在 CRF++0.58 的 python 目录下的 README 文件中有描述，具体如下：
$ python setup.py build
$ sudo python setup.py install
这放置在目录 /usr/local/lib/python2.7/dist-packages/ 中：
- CRFPP.py
- CRFPP.pyc
_CRFPP.so
目录 /usr/local/lib/python2.7/dist-packages/ 在 sys.path
在 setup 目录的 CRFPP.py 中，在其开头包含以下过程：
#This file was automatically generated by SWIG (http://www.swig.org). # Version 2.0.4 # # Do not make changes to this file unless you know what you are doing--modify # the SWIG interface file instead. from sys import version_info if version_info >= (2,6,0): def swig_import_helper(): from os.path import dirname import imp fp = None try: fp, pathname, description = imp.find_module('_CRFPP',[dirname(__file__)]) except ImportError: import _CRFPP return _CRFPP if fp is not None: try: _mod = imp.load_module('_CRFPP', fp, pathname, description) finally: fp.close() return _mod _CRFPP = swig_import_helper() del swig_import_helper else: import _CRFPP del version_info
imp 没有找到 _CRFPP.so，但是找到了 CRFPP.py：
>>> import imp
>>> imp.find_module("_CRFPP")
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named _CRFPP
>>> imp.find_module("CRFPP")
(<open file '/usr/local/lib/python2.7/dist-packages/CRFPP.py', mode 'U' at 0x7f7748e4a540>, '/usr/local/lib/python2.7/dist-packages/CRFPP.py', ('.py', 'U', 1))