我刚刚安装了matplotlib来生成一些图。但是这个模块不能在python解释器中导入。虽然它可以在ipython中导入，但是当我使用ipython来执行这些示例时。它没有显示任何东西......
除此之外，我也不能使用空闲。 IDLE can't import Tkinter. Your Python may not be configured for Tk.
我的操作系统是ubuntu 13.04，默认的python版本是3.0。但我手动安装python 2.7。
我的python配置有什么问题。
我的python路径是
['', '/usr/local/lib/python27.zip', '/usr/local/lib/python2.7', '/usr/local/lib/python2.7/plat-linux2', '/usr/local/lib/python2.7/lib-tk', '/usr/local/lib/python2.7/lib-old', '/usr/local/lib/python2.7/lib-dynload', '/usr/local/lib/python2.7/site-packages']
我发现只有当我在终端启动python时，才能导入那些模块！
ipython中的sys.path是
['',
'/usr/bin',
'/usr/lib/python2.7',
'/usr/lib/python2.7/plat-x86_64-linux-gnu',
'/usr/lib/python2.7/lib-tk',
'/usr/lib/python2.7/lib-old',
'/usr/lib/python2.7/lib-dynload',
'/usr/local/lib/python2.7/dist-packages',
'/usr/lib/python2.7/dist-packages',
'/usr/lib/python2.7/dist-packages/PILcompat',
'/usr/lib/python2.7/dist-packages/gtk-2.0',
'/usr/lib/pymodules/python2.7',
'/usr/lib/python2.7/dist-packages/ubuntu-sso-client',
'/usr/lib/python2.7/dist-packages/ubuntuone-client',
'/usr/lib/python2.7/dist-packages/ubuntuone-control-panel',
'/usr/lib/python2.7/dist-packages/ubuntuone-storage-protocol',
'/usr/lib/python2.7/dist-packages/IPython/extensions']
但在我将这些路径添加到PYTHONPATH之后，它仍然无法正常工作。
ImportError: numpy/core/multiarray.so: undefined symbol: PyUnicodeUCS4_AsUnicodeEscapeString
那我怎么能覆盖pythonpath？