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Update basics.rst 

Python 3.8+ Windows troubleshooting
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Konstantin Briukhnov (Costa Bru) 2021-06-16 14:37:10 -07:00 committed by GitHub
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@ -306,3 +306,17 @@ Supported data types
A large number of data types are supported out of the box and can be used A large number of data types are supported out of the box and can be used
seamlessly as functions arguments, return values or with ``py::cast`` in general. seamlessly as functions arguments, return values or with ``py::cast`` in general.
For a full overview, see the :doc:`advanced/cast/index` section. For a full overview, see the :doc:`advanced/cast/index` section.
Python 3.8+ Windows troubleshooting
===================================
According to the python release notes document, DLL dependencies for *.pyd file doesn't search the directories
in PATH environment since Python 3.8 on Windows.
That leads to the following, sometimes python cannot load pyd extension without any useful information provided.
Usually, it raises an error:
ImportError: DLL load failed: The specified module could not be found.
To overcome it, you can try out https://github.com/lucasg/Dependencies tool.
It shows all dependencies your pyd file has at the moment. And, you will be able to locate
those dependency paths, register it via os.add_dll_directory("your dlls path")
right before importing your extension in your python script.