【发布时间】:2019-01-18 12:34:36
【问题描述】:
我正在尝试从虚拟环境调用为 macOS 上的 Python 打包的 MATLAB 包。
为了在 macOS 上使用 MATLAB 运行时,DYLD_LIBRARY_PATH must be updated to point to the MATLAB Runtime 和 libpython3.6.dylib。
export DYLD_LIBRARY_PATH="/Applications/MATLAB/MATLAB_Runtime/v95/runtime/maci64:/Applications/MATLAB/MATLAB_Runtime/v95/sys/os/maci64:/Applications/MATLAB/MATLAB_Runtime/v95/bin/maci64:/Library/Frameworks/Python.framework/Versions/3.6/lib:${DYLD_LIBRARY_PATH}"
然后创建并激活 Python 虚拟环境:
$ python3.6 -m venv py36
$ source py36/bin/activate
接下来将MATLAB packaged for Python application 安装到虚拟环境中:
(py36) $ cd /Applications/my_matlab_app/application
(py36) $ python setup.py install
(py36) $ pip list
Package Version
---------------------- -------
matlabruntimeforpython R2018b
pip 18.1
setuptools 40.6.2
现在尝试运行一个脚本,在虚拟环境中导入您的 MATLAB 库:
(py36) $ python matlab_test.py
Exception caught during initialization of Python interface. Details: On the Mac, use 'mwpython' rather than 'python' to start a script or session that will call deployed MATLAB code from Python.
Traceback (most recent call last):
File "matlab_test.py", line 26, in <module>
import my_matlab_app
File "/Users/user/venv/py36/lib/python3.6/site-packages/my_matlab_app/__init__.py", line 283, in <module>
_pir.import_cppext()
File "/Users/user/venv/py36/lib/python3.6/site-packages/my_matlab_app/__init__.py", line 276, in import_cppext
self.cppext_handle = importlib.import_module("matlabruntimeforpython" + self.interpreter_version)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
RuntimeError: On the Mac, use 'mwpython' rather than 'python' to start a script or session that will call deployed MATLAB code from Python.
问题在于,据我所知,mwpython 不能在虚拟环境中使用。有没有办法解决这个问题?我们目前正在努力创建可重复的环境,因为mwpython 似乎硬编码了要全局安装的所有内容。
测试日期:
- macOS 10.14.2
- 从 python.org 安装的 Python 3.6.8
- MATLAB 运行时 2018b
【问题讨论】:
标签: python python-3.x matlab matlab-deployment python-venv