python - 使用 MATLAB 代码创建 python 应用程序时出错 (LD_LIBRARY_PATH)

Question

我阅读了以下说明，以便使用 matlab 代码创建 python 应用程序:Create a Python Application with MATLAB Code

一切正常，当我执行命令python setup.py install时，会显示以下消息:

root@david:/home/david/Desktop/Matrices_Clifford/for_redistribution_files_only# python setup.py install
running install
running build
running build_py
creating build
creating build/lib.linux-x86_64-2.7
creating build/lib.linux-x86_64-2.7/Matrices_Clifford
copying Matrices_Clifford/__init__.py -> build/lib.linux-x86_64-2.7/Matrices_Clifford
copying Matrices_Clifford/Matrices_Clifford.ctf -> build/lib.linux-x86_64-2.7/Matrices_Clifford
running install_lib
creating /usr/local/lib/python2.7/dist-packages/Matrices_Clifford
copying build/lib.linux-x86_64-2.7/Matrices_Clifford/Matrices_Clifford.ctf -> /usr/local/lib/python2.7/dist-packages/Matrices_Clifford
copying build/lib.linux-x86_64-2.7/Matrices_Clifford/__init__.py -> /usr/local/lib/python2.7/dist-packages/Matrices_Clifford
byte-compiling /usr/local/lib/python2.7/dist-packages/Matrices_Clifford/__init__.py to __init__.pyc
running install_egg_info
Removing /usr/local/lib/python2.7/dist-packages/matlabruntimeforpython-R2017a.egg-info
Writing /usr/local/lib/python2.7/dist-packages/matlabruntimeforpython-R2017a.egg-info
removing 'build/lib.linux-x86_64-2.7' (and everything under it)
'build/bdist.linux-x86_64' does not exist -- can't clean it
'build/scripts-2.7' does not exist -- can't clean it
removing 'build'

然后，当我尝试导入 Matrices_Clifford 时出现错误:

import Matrices_Clifford
    Exception caught during initialization of Python interface. Details: On Linux, you must set the environment variable "LD_LIBRARY_PATH" to a non-empty string. For more details, see the package documentation.
    Traceback (most recent call last):
      File "<stdin>", line 1, in <module>
      File "Matrices_Clifford/__init__.py", line 276, in <module>
        _pir.get_paths_from_os()
      File "Matrices_Clifford/__init__.py", line 171, in get_paths_from_os
        friendly_os_name, self.path_var, 'For more details, see the package documentation.'))
    RuntimeError: On Linux, you must set the environment variable "LD_LIBRARY_PATH" to a non-empty string. For more details, see the package documentation.

如何解决这个问题？

Answer 1

这个错误是不言自明的。必须定义环境变量LD_LIBRARY_PATH，以便操作系统知道库的位置。使用setenv command正确定义它，如下所示:

setenv LD_LIBRARY_PATH path/to/libraries

看来this link可以为您指明正确的路径(没有双关语)，并且所需位置的格式为 matlabroot/bin/glnxa64:matlabroot/sys/os/glnxa64。