(classes)
return classes
Ensure object appears in the mro even
    for old-style classes.
Ensure object appears in the mro even
    for old-style classes.
Ensure object appears in the mro even for old - style classes .
def _always_object(classes):
    """
    Ensure object appears in the mro even
    for old-style classes.
    """
    if object not in classes:
        return classes + (object,)
    return classes
def _always_object ( classes ) : if object not in classes : return classes + ( object , ) return classes