method to generate python object from array of kwargs

generate_object.py

def generate_objects(object_type, obj_ary, default = {}, attr_names = {}):
  """Generate objects that is given in `obj_ary` of class `object_type`.
  
     Parameters
     ----------
     object_type : str
        the class name 
     obj_ary : array
        object attribute that will populate the object.
     default : dict
        default attributes for all generated objects.
     attr_names : dict
        change attribute name from obj_ary
  """
  klass = eval(object_type)
  instances = []
  for object_dict in obj_ary:
    # change key names.
    for key, newkey in attr_names.iteritems():
      object_dict[newkey] = object_dict[key]
      object_dict.pop(key)
    # merge object_dict with default
    kwargs = dict(object_dict.items() + default.items())
    
    instance = klass(**kwargs)
    instances.append(instance)
  return instances
 
# Example of class that work with generate_objects().
class Site(object):
  def __init__(self, **kwargs):
    for key in kwargs:
      setattr(self, key, kwargs[key])


if __name__ == '__main__':
  generate_objects('Site', 
                   [{'scheme': 'http', 'host':'ecleel.com', 'port': 80, 'dirs': '/foo.html'},
                    {'scheme': 'https', 'host':'yahoo.com', 'port': 443, 'dirs': '/test.html'}],
                   default={'need_authentication': False},
                   attr_names={'dirs':'path'})