Py3 / Py2 compat test

__init__.py

try:
    from virtual_machine_py3 import VirtualMachine
except (SyntaxError, ImportError):  # Catch SyntaxError if Py2 or ImportError if we decide to build wheel for Py2 without py3 files.
    from virtual_machine import VirtualMachine

virtual_machine.py

class VirtualMachine(object):
    def __init__(self, **kwargs):
        self.name = kwargs["name"]  # Let it fail if not there

virtual_machine_py3.py

class VirtualMachine(object):
    def __init__(self, *, name:str) -> None:
        self.name = name