I have been creating Python packages (using the library compiler tool) from custom functions that take as input multidimensional arrays using matlab runtime R2021a (9.10) and using them in python as follows:
From python:
my_calculations = calculations.initialize()
maximum_2D_array = matlab.double(maximum_matrix, size=np.array(maximum_matrix).shape)
matrix_3D_array = matlab.double(matrix_array, size=np.array(matrix_array).shape)
my_calculations.CustomFunction(maximum_2D_array,matrix_3D_array, nargout=0)
I did it this way because Matlab only accepts arrays of same size, that is why I used np.array.shape as size. So far this was working great, but now our matlab was updated to the 2022 version. I updated the Matlab runtime to (Runtime R2022a 9.12) and created the python package again but now this same code is not working and is always throwing me this error:
TypeError: unsupported Python data type: mlarray.double
Traceback (most recent call last):
File "c:/Users/user/Documents/matlabtests/Matlab_calculations.py", line 6
my_calculations.CustomFunction(maximum_2D_array,matrix_3D_array, nargout=0) File "C:\MATLAB\Runtime\v912\toolbox\compiler_sdk\pysdk_py\matlab_pysdk\runtime\deployablefunc.py", line 70, in __call__
future_tuple = self._cppext_handle.evaluateFunction(self._mcr_handle, self._name, nlhs, args,
SystemError: <built-in function evaluateFunction> returned NULL without setting an error
Does anyone have an idea why this happened? did something changed on the new matlab runtime that somehow now it does not accept matlab doubles as input?
