YAQ about reloading python modules in Matlab after python changes

Question

Alexander 2023-7-27

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2001347-yaq-about-reloading-python-modules-in-matlab-after-python-changes

评论： Alexander 2024-1-1

I understand that there have been a number of questions regarding issues with Matlab not reloading python modules after they have been changed. Based off other answers, I have an acceptable solution, but I think I am hitting a bug.

My python:

class myTestClass:
    def __init__(self, somestr):
        self.loc = 1234
        print("Init called")
    def __del__(self):
        print("Destructor")
    def myTestFunc(self):
        a = 456
        print(f'My Test Func called loc={self.loc} a={a}')

My Matlab:

%clear classes
myMatlabTestClass = py.importlib.import_module('myMatlabTestClass');
py.importlib.reload(myMatlabTestClass);
pyclass = myMatlabTestClass.myTestClass("hello");
pyclass.myTestFunc()

The problem:

The above is sensitive to python code changes if I change the value of self.loc, but changing the value of a in myTestFunc requires the inclusion of clear classes.

I fear that clear classes will be too expensive and may impact other code, depending on where it is called.

I'd like to understand why a and self.loc would be treated differently here and if there is a workaround.

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Alexander 2023-7-27

在 MATLAB Online 中打开

Not quite what I wanted, but this code works flawlessly:

myMatlabTestClass = py.importlib.import_module('myMatlabTestClass');
py.importlib.reload(myMatlabTestClass);
pyrun("import myMatlabTestClass")
pyrun("myClass = myMatlabTestClass.myTestClass('somestr')")
pyrun("myClass.myTestFunc()")

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

SHAQLAIN 2023-12-24

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2001347-yaq-about-reloading-python-modules-in-matlab-after-python-changes#answer_1377042

在 MATLAB Online 中打开

class myTestClass:
    def __init__(self, somestr):
        self.loc = 1234
        print("Init called")
    def __del__(self):
        print("Destructor")
    def myTestFunc(self):
        a = 456
        print(f'My Test Func called loc={self.loc} a={a}')