Python中type构造函数参数说明

 1 class ModelMetaClass(type): 2     def __new__(cls,name,base,attrs): 3         logging.info("cls is:"+str(cls)) 4         logging.info("name is:"+str(name)) 5         logging.info("base is:"+str(base)) 6         logging.info("attrs is:"+str(attrs)) 7         return type.__new__(cls,name,base,attrs) 8         pass 9     pass10 11 class Model(dict):12     __metaclass__ = ModelMetaClass13     def __init__(self):14         pass15     pass16 17 def main():18     m=Model()19 20 if __name__ == '__main__':21     main()

1 INFO:root:cls is:<class '__main__.ModelMetaClass'>2 INFO:root:name is:Model3 INFO:root:base is:(<type 'dict'>,)4 INFO:root:attrs is:{'__module__': '__main__', '__metaclass__': <class '__main__.ModelMetaClass'>, '__init__': <function __init__ at 0x025C76F0>}