Bug#893233: python-lesscpy: python3-lesscpy not working with python 3.5 or newer

Here is the upstream bug : https://github.com/lesscpy/lesscpy/issues/85 When starting a simple lesscpy compile command, I got the same error.

Bug#893233: python-lesscpy: python3-lesscpy not working with python 3.5 or newer

Source: python-lesscpy Version: 0.10-1 Severity: important python-lesscpy 0.10 do not support python 3.5 or newer. Please upgrade this package to have a working python-lesscpy with python3. The actual stable upstream version is 0.13 Thanks Regards