Python 内建函数 - getattr(object, name[, default])

Manual

Return the value of the named attribute of object. name must be a string. If the string is the name of one of the object’s attributes, the result is the value of that attribute. For example, getattr(x, ‘foobar’) is equivalent to x.foobar. If the named attribute does not exist, default is returned if provided, otherwise AttributeError is raised.

直译

返回object中名为name的属性值。name必须是字符串，如果字符串是对象某个属性名，结果为该属性值，例如getattr(x, ‘foobar’)等价于x.foobar。如果给定的name不存在，会根据提供的默认值进行返回，否则会引发AttributeError。

实例

>>> class 优快云:
    def foobar(self):
        print('Hello 优快云er!')
>>> getattr(优快云, 'foobar')
<function 优快云.foobar at 0x03944F18>
>>> 优快云.foobar
<function 优快云.foobar at 0x03944F18>

拓展阅读

delattr()
hasattr()
setattr()