001、python报错如下：
>>> dict1 = {"aa":700, "bb":400, "cc":300, "dd":600}
>>> dict1.values().index(300)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'dict_values' object has no attribute 'index'
002、报错原因，python3不支持 index用法
003、解决方法
>>> dict1 = {"aa":700, "bb":400, "cc":300, "dd":600}
>>> dict1.values().index(300)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'dict_values' object has no attribute 'index'
>>> list(dict1.values()).index(300) ## 增加list函数
2
标签：index,dict1,no,300,attribute,values From： https://www.cnblogs.com/liujiaxin2018/p/17451489.html