python - 在python中创建一个匿名类实例

Question

有时我需要在python中创建一个匿名类实例，就像c#一样:

var o= new {attr1="somehing", attr2=344};

但在 python 中我是这样做的:

class Dummy: pass
o = Dummy()
o.attr1 = 'something'
o.attr2 = 344
#EDIT 1
print o.attr1, o.attr2

如何在单个语句中以 Python 方式做到这一点？

Answer 1

o = type('Dummy', (object,), { "attr1": "somehing", "attr2": 344 })

o.attr3 = "test"
print o.attr1, o.attr2, o.attr3