These VSCode devcontainers setup multiple environments for testing against different python versins.
$ git clone [email protected]:splintered-reality/py_trees.git
$ code ./py_trees
At this point you can either "Re-open project in container" to develop against the default python version.
Alternatively "Open Folder in Container" and point it at one of the
py<MAJOR><MINOR> subfolders in this directory to develop against a different
python version.