python获取变量的数据类型

import types  

aaa = 0  
print type(aaa)  
if type(aaa) is types.IntType:  
    print "the type of aaa is int"  
if isinstance(aaa,int):  
    print "the type of aaa is int"  

bbb = 'hello'  
print type(bbb)  
if type(bbb) is types.StringType:  
    print "the type of bbb is string"  
if isinstance(bbb,str):  
    print "the type of bbb is string"  

#if the type is NoneType,the isinstance does not work  
#we should judge the NoneType like below  
#if row is None  
#if type(row) is types.NoneType  

#In my opinion,use the types to judge the type of a param is convinient<span style="font-family:Arial;background-color: rgb(255, 255, 255);">, use the isinstance to judge whether a instance is a type of a class or not</span>  

转载：http://blog.csdn.net/gukesdo/article/details/7064868