Now, copy the contents of <fbx-sdk dir>\lib\Python33_x64 to <python dir>\Lib\site-packages. For example, in my case I copied 3 files (fbx.pyd, FbxCommon.py and fbxsip.pyd) from F:\Program Files\Autodesk\FBX\FBX Python SDK\2019.0\lib\Python33_x64 to F:\Python33\Lib\site-packages. >.