But I still use Python 2.7!
If you are stuck with a Python 2.7 environment, then the sample project can be easily backported. There is a custom script named backport3to2.py
at the project root that can perform a one-way conversion to Python 2.x. Note that it is not general enough for using in other projects.
However, if you are interested in knowing why Python 3 is better, then read on.