Python delattr() 函数
描述
Python delattr 函数用于删除属性。
delattr(x, 'foobar') 相等于 del x.foobar。
语法
delattr 语法:
delattr(object, name)
参数
- object:对象。
- name:必须是对象的属性。
返回值
无。
实例
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'