我想使用Orange包进行科学分析。在x86_64 Ubuntu 12.04
上安装,使用sudo easy_install orange
进行了安装,配合Python 2.7.3
。然而,该软件包似乎不能直接使用:
11:30:43 leon@t410i:~$ python
Python 2.7.3 (default, Apr 20 2012, 22:39:59)
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import orange
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named orange
>>>
然而,在从适当的dist-packages子目录运行Python时导入包可以正常工作:
11:34:02 leon@t410i:~$ cd /usr/local/lib/python2.7/dist-packages/Orange-2.5a4-py2.7-linux-x86_64.egg/Orange
11:34:32 leon@t410i:/usr/local/lib/python2.7/dist-packages/Orange-2.5a4-py2.7-linux-x86_64.egg/Orange$ python
Python 2.7.3 (default, Apr 20 2012, 22:39:59)
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import orange
>>> orange.__file__
'orange.so'
>>>
什么是问题?当从文件系统的任何位置调用Python时,dist-packages中包含的其他软件包可以正常工作。