I am working within a legacy environment that is restricted to Python 3.6. When attempting to install or use CustomTkinter, it fails due to incompatibility with this Python version.I would like to inquire if there is any possibility of providing support for Python 3.6, or if there is a specific older version of CustomTkinter that is compatible with it.

I have considered upgrading the Python environment, but it is not feasible for this specific project at this time. My environment relies on a python library named pyhula and this package doesn't support Python newer than 3.6 version (though its PyPI says it does).

CustomTkinter could be the choice for those who want modren-UI but have difficulties in upgrading their Python version.