Python3报错:TypeError: unsupported operand type(s) for /: 'dict_values' and 'int'

Python3报错:TypeError: unsupported operand type(s) for /: 'dict_values' and 'int'

报错原因：

• In python3, dict.values returns a dict_values object, which is not a list or tuple.

• 

解决方法：Try coercing that into a list.