def __coerce_and_spawn(self, arg):
        """Coerce the argument into a call to `_child_spawn()`"""
        try:
            self._child_spawn(**arg)
        except:
            self._child_spawn(argv=arg)
Coerce the argument into a call to `_child_spawn()`
recipes/Python/576957_Asynchronous_subprocess_using/recipe-576957.py