推荐一篇博客，作者介绍在 DS 项目中写测试。毕竟 ML 的项目测试起来和传统的程序不是太一样，除了最基础的 assert, pytest 这些之外对数据的分布和数据一些统计指标也需要做测试。文中提到的几个工具 Hypothesis 和 Pandera 我都是用过的，Pandera 很好用，也可以原生集成给 Pandas/Koalas（Koalas 也是我配合 PySpark 最常用的 DataFrame 工具）。https://www.peterbaumgartner.com/blog/testing-for-data-science/
BY Data Science Archive
Some messages aren’t supposed to last forever. There are some Telegram groups and conversations where it’s best if messages are automatically deleted in a day or a week. Here’s how to auto-delete messages in any Telegram chat. You can enable the auto-delete feature on a per-chat basis. It works for both one-on-one conversations and group chats. Previously, you needed to use the Secret Chat feature to automatically delete messages after a set time. At the time of writing, you can choose to automatically delete messages after a day or a week. Telegram starts the timer once they are sent, not after they are read. This won’t affect the messages that were sent before enabling the feature.
The SSE was the first modern stock exchange to open in China, with trading commencing in 1990. It has now grown to become the largest stock exchange in Asia and the third-largest in the world by market capitalization, which stood at RMB 50.6 trillion (US$7.8 trillion) as of September 2021. Stocks (both A-shares and B-shares), bonds, funds, and derivatives are traded on the exchange. The SEE has two trading boards, the Main Board and the Science and Technology Innovation Board, the latter more commonly known as the STAR Market. The Main Board mainly hosts large, well-established Chinese companies and lists both A-shares and B-shares.
Data Science Archive from sg