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# _*_ coding: utf-8 _*_

"""

python_metaclass.py by xianhu

"""

class Foo:

def hello(self):

print("hello world!")

return

foo = Foo()

print(type(foo)) # <class '__main__.Foo'>

print(type(foo.hello)) # <class 'method'>

print(type(Foo)) # <class 'type'>

temp = Foo # 赋值给其他变量

Foo.var = 11 # 增加参数

print(Foo) # 作为函数参数

# ========================================================================

def init(self, name):

self.name = name

return

def hello(self):

print("hello %s" % self.name)

return

Foo = type("Foo", (object,), {"__init__": init, "hello": hello, "cls_var": 10})

foo = Foo("xianhu")

print(foo.hello())

print(Foo.cls_var)

print(foo.__class__)

print(Foo.__class__)

print(type.__class__)

# ========================================================================

class Author(type):

def __new__(mcs, name, bases, dict):

# 添加作者属性

dict["author"] = "xianhu"

return super(Author, mcs).__new__(mcs, name, bases, dict)

class Foo(object, metaclass=Author):

pass

foo = Foo()

print(foo.author)