Matlab system and ! commands point to wrong python version?
显示 更早的评论
I am trying to run python programs using the system function in Matlab. In spite of changing the PythonEnvironment using;
>> pe=pyenv('Version','/opt/anaconda3/bin/python3.8')
pe =
PythonEnvironment with properties:
Version: "3.8"
Executable: "/opt/anaconda3/bin/python3.8"
Library: "/opt/anaconda3/lib/libpython3.8.dylib"
Home: "/opt/anaconda3"
Status: NotLoaded
ExecutionMode: InProcess
When using the ! or system comands, Matlab still utilises the old Python vesion. This is illustrated below...
>> pyenv
ans =
PythonEnvironment with properties:
Version: "3.8"
Executable: "/opt/anaconda3/bin/python3.8"
Library: "/opt/anaconda3/lib/libpython3.8.dylib"
Home: "/opt/anaconda3"
Status: NotLoaded
ExecutionMode: InProcess
>> ! python --version
Python 2.7.16
>> system('python --version')
Python 2.7.16
ans =
0
How can I get these commands to access my python 3.8?
采纳的回答
Walter Roberson
2021-10-12
This is expected. Using ! or system() find the python that is first in your system path, which might not be the same one you have configured MATLAB to use. Using the pyenv() call does not reconfigure your PATH environment variables.
You might need to do something like
!PATH="/opt/anaconda3/bin:$PATH" python -version
I do not know enough about python to know whether you need to configure an environment variable for the library.
更多回答（1 个）
Steven Baird
2024-1-30
0 个投票
This worked for me:
>> system('python --version');
Python 3.12.0
类别
在 帮助中心 和 File Exchange 中查找有关 Call Python from MATLAB 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
