isinstance 和 issubclass

#!/usr/bin/env python
# -*- coding:utf-8 -*-
print(isinstance(1,int))
#True
#判断 1 是不是int类型
class Foo:
    pass
class Son(Foo):
    pass
s = Son()
print(isinstance(s,Son))  #判断s是不是Son的对象
print(type(s) is Son)
print(isinstance(s,Foo))  #判断s是不是Foo的对象  不精准
print(type(s) is Foo)  #type比较精准

print(issubclass(Son,Foo)) #判断Son是不是Foo的子类
print(issubclass(Son,object))
print(issubclass(Foo,object))
print(issubclass(int,object))