Pylive: On-the-Fly Code Change for Python-based Online Services (ATC 2021), From Haochen Huang, Chengcheng Xiang, Li Zhong, and Yuanyuan Zhou, University of California, San Diego Running a high availability online service is still challenging today, as there are many factors that can cause a service to fail, especially when trying to keep your code shipping velocity at a decent pace (aka “Move fast and break things”).