delattr 函数用于删除属性。
delattr(x, 'foobar') 相等于 del x.foobar。
delattr 语法:
delattr(object, name)
无。
以下实例展示了 delattr 的使用方法:
#!/usr/bin/python # -*- coding: UTF-8 -*- class Coordinate: x = 10 y = -5 z = 0 point1 = Coordinate() print('x = ',point1.x) print('y = ',point1.y) print('z = ',point1.z) delattr(Coordinate, 'z') print('--删除 z 属性后--') print('x = ',point1.x) print('y = ',point1.y) # 触发错误 print('z = ',point1.z)
输出结果:
('x = ', 10) ('y = ', -5) ('z = ', 0) --删除 z 属性后-- ('x = ', 10) ('y = ', -5) Traceback (most recent call last): File "test.py", line 22, in <module> print('z = ',point1.z) AttributeError: Coordinate instance has no attribute 'z'