environment/lib/python2.7/site-packages/nose/util.py
def isclass(obj):
    """Is obj a class? Inspect's isclass is too liberal and returns True
    for objects that can't be subclasses of anything.
    """
    obj_type = type(obj)
    return obj_type in class_types or issubclass(obj_type, type)
def isclass(obj):
    obj_type = type(obj)
    return obj_type in class_types or issubclass(obj_type, type)
def isclass ( obj ) : obj_type = type ( obj ) return obj_type in class_types or issubclass ( obj_type , type )
Is obj a class? Inspect's isclass is too liberal and returns True
    for objects that can't be subclasses of anything.
Is obj a class? Inspect s isclass is too liberal and returns True for objects that can t be subclasses of anything .