typeerror: unsupported operand type(s) for : 'getset_descriptor
snow-200089: unsupported operand type(s) for : '
python 错误提示typeerror: unsupported operand type(s) for //: '
python错误集锦:set计算并集时typeerror: unsupported operand type
typeerror: unsupported operand type(s) for *: 'nonetype' and '