Came across a fairly new python library in my travels called Six to aid as a compatibility layer so single scripts can be compatible with both python 2 and 3 without the need for multiple versions of the scripts. It's got an MIT license and can be included with projects. Here's the link if anyone feels it can be of use: https://pypi.org/project/six/

-----sig-----
Daz, Blender, Affinity, Substance, Unity, Python, C#