The python 3 library for DataEase Prism 9 comes with a full python installation. This is due to all the files needed to communicate with Prism. So to use it install our python installation set instead of the default one. After installation (usually at C:\DEPy3) you need to get a license file and add it to c:\ProgramData\DataEase\DEPy3. If you install it somewhere else, make sure to match your directory with the one in the path. If you have not installed it correctly you will get an exception "Exception: Invalid license file, please install correct license file at some path" when you try to use debdata3 in any way.