daifeng

However, it will success when specify the version: ``` pip3 install mysqlclient==1.4.5 ```

> Not currently, though that's an interesting feature request. What's your planned use case? sometimes I need to show only certain tags and hid others, so I'm wondering TO add...

总结：赋值虽然不会查找（和返回）原型链上的属性，但是会继承相应的 descriptor

这本书应该是参考过Operating Systems: Three Easy Pieces的，不过个人感觉这本书写的更好，重点内容更突出，真希望早一点看到这本书！