def _get_upstream_property(base, attr):  ## no longer required
	if base.__properties__ in attr:
		return base.__properties__[ attr ]
	for parent in base.__bases__:
		return _get_upstream_property(parent, attr)
dataset/ETHPy150Open PythonJS/PythonJS/pythonjs/runtime/pythonpythonjs.py/_get_upstream_property/swapped operands of `in`