Matlab requires restart before changes in Python code changes are applied
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Background:
I am running Matlab 2020a and Python 3.8 on Win 10. I am launching Matlab from an Anaconda prompt in the mne environment (https://mne.tools/stable/index.html).
I am calling a Python function using the standard syntax - ex: r = py.test.score(X,y).
The Issue:
I make changes to the Python code, save, and runfile which are immediately available in my Python ide (Spyder), but Matlab does run the latest version of the Python function. I have to restart Matlab - using the Anaconda prompt in the mne environment - each time I make a change to my Python code. Upon restart, the updated Python code is used by Matlab.
I update the current Python path prior to calling my Python function using:
if count(py.sys.path,'')==0
insert(py.sys.path,int32(0),'');
end
I have tested this with a basic "Hello World" type Python function and this is my experience.
I am not sure how to further troubleshoot this issue.
Is there something I may be doing incorrectly?
Thanks in advance,
Daniel
2 个评论
Stijn Haenen
2020-8-7
Is there an .asv file of the python script saved in your working folder. The .asv files are used as backup while matlab is running. Maybe you should change the .asv files of the python script.
采纳的回答
Sean de Wolski
2020-8-7
Try this
clear classes
m = py.importlib.import_module('yourlib');
py.importlib.reload(m);
2 个评论
Ronan Fleming
2021-4-12
https://nl.mathworks.com/help/releases/R2021a/matlab/matlab_external/out-of-process-execution-of-python-functionality.html
更多回答(3 个)
Chen
2021-5-14
Sean's answer will not work without wrapping a function around it.
Apparently, it's a known bug
function reloadPy()
warning('off','MATLAB:ClassInstanceExists')
clear classes
mod = py.importlib.import_module('mat');
py.importlib.reload(mod);
end
2 个评论
Sean de Wolski
2021-5-17
I might suggest modifying the warning part to this to restore state after.
s = warning('off','MATLAB:ClassInstanceExists');
restorer = onCleanup(@()warning(s));
Akshay Jajoo
2021-9-8
I am getting the following error: Unable to resolve the name py.importlib.reload.
MONIKA
2024-1-3
function reloadPy() warning('off','MATLAB:ClassInstanceExists') clear classes mod = py.importlib.import_module('mat'); py.importlib.reload(mod);
0 个评论
MONIKA
2024-1-3
function reloadPy() warning('off','MATLAB:ClassInstanceExists') clear classes mod = py.importlib.import_module('mat'); py.importlib.reload(mod);
0 个评论
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