Why do I receive an error "Unable to resolve the name py.(moduleName)" when using the Python interface in MATLAB?
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When trying to use a python module in MATLAB using the Python interface, I receive the following error message,
Unable to resolve the name py.(moduleName)
Why do I receive an error "Unable to resolve the name py.(moduleName)" when using the Python interface in MATLAB?
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MathWorks Support Team
2024-8-7
编辑：MathWorks Support Team
2024-8-7
1) If moduleName is a built-in or third-party Python module, then check if this module has already been installed in your Python distribution before importing it. You can check this by executing the following command in a Windows/Unix terminal.
python -m pip list
Install moduleName, if it is not listed. For example, from a Windows/Unix terminal.
python -m pip install moduleName
2) If moduleName is a user-defined module, please check the Python path and make sure that it contains an absolute path to the directory where this user-defined Python module is saved. To check the Python path, please use the following command in MATLAB.
py.sys.path
If the directory where the user-defined tom Python module is located is not included in the Python path, then add the directory to the Python path in MATLAB with the following command.
insert(py.sys.path,int32(0),"<absolute path to module directory>")
See this documentation for more information about calling user-defined modules.
3) In case the user-defined Python module is still not found, then try executing this command from MATLAB.
py.importlib.import_module('moduleName')
The error message for this command may provide a more comprehensive reason about why the module could not be imported.
4) See
for more comprehensive coverage of this issue.
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