Python 版 Rust/内置 linter clippy 来了

原文: PyCoder's Weekly - Issue #545


  • 221005 Zoom.Quiet(大妈) 用时 13 分钟 完成快译
  • 221005 Zoom.Quiet(大妈) 用时 37 分钟 完成格式转抄.

Building stateful web applications can be tricky, unless you use a framework, of course. Django to the rescue! In this article, learn how to build a real-time chat app using Django Channels and WebSockets.

QR codes are two dimensional bar codes that allow you to embed URLs in images. Learn how to make a QR code using the qrcode library.




In this video course, you’ll learn how to use Django Ninja, a FastAPI inspired tool for turning Django views in REST API endpoints. With Ninja, you can quickly build API endpoints.






Al appears to be bored and decided to start a flame war. As his suggestions include 1-based indexing and using “x” instead of “*” for multiplication, he’s likely being sarcastic. The joy of text is you’re never quite sure.





Articles, Tutorials and Talks

This Python Enhancement Proposal describes the use of a new decorator, @override, which would be used as a type-hint for methods in a sub-class that override a parent’s method. This type hint would introduce a level of safety if the parent method is refactored without corresponding changes to the child method.


引入一个新语法, 发现一类新问题, 然后再来一个新语法来防止...

嗯哼? 这个故事好象在哪儿听说过... 好象澳州原先没有猫...


A Jupyter Notebook is an excellent tool for creating computational documents. There is often a requirement to update the notebook’s results at a selected time interval and publish it to the rest of the team. Piotr summarizes five different approaches for Jupyter Notebook scheduling.




The type annotation tool, mypy comes with a compiler called mypyc which uses Python type hints to generate C-extensions automatically. This blog posting describes how Steve used it to compile some of his code, the problems he ran into, and how he fixed them.

This blog posting contains a brief summary and then two chapters from the book “Understanding Distributed Systems” by Roberto Vitillo. It describes how to make distributed systems more resilient from both the client’s and server’s perspectives.

In this tutorial, you’ll learn how to create custom string-like classes in Python by inheriting from the built-in str class or by subclassing UserString from the collections module.


UserString )

This blog post describes seven concepts Django programmers should keep in mind when writing production ready code. Hints include information on custom user models, configuring Gunicorn, problems with serializers, and more.

Stable Diffusion is a powerful, open-source text-to-image generation model. This guide shows you how to generate novel images using the KerasCV Python interface.




A step-by-step guide on how to deploy Python in the AWS Lambda environment. Details include managing dependencies and dealing with an ASGI application.

This article introduces you to using pytest for testing Python code. Learn how to improve your development process and write better automated tests.

This article outlines six things every developer should keep in mind when coding, hopefully resulting in easy to read, more maintainable Python.



事实反复证明, 程序猿开始文艺时, 就没设计师什么事儿了


A step-by-step article that guides you through everything you need to know to write your first REST API using Flask. From installing the requirements, through mapping models, to implementing security.


Flask 好象又突然积极起来



Interesting Projects, Tools and Libraries, Projects & Code





PEP8 衍生工具?

$ refurb [FURB109]: Use `in (x, y, z)` instead of `in [x, y, z]` [FURB101]: Use `y = Path(x).read_text()` instead of `with open(x, ...) as f: y =` [FURB102]: Replace `x.startswith(y) or x.startswith(z)` with `x.startswith((y, z))` [FURB105]: Use `print() instead of `print("")`

给出各种最新 Pythonic 式代码建议, 不动手, 算是优雅版 Black ?

很大程度上受到了 Rust 的内置 linter clippy 的启发.



这种直接修改源代码的工具, 总是感觉哪儿有危险...


📆🐍 活动/大会

Events, MeetUp 真的是全球线下活动组织中心


就是那个反复出现在各种 SiFi 剧集中, 西部拱门所在地;



❤️ Happy Pythonic ;-(大妈私人无责任播报)



谈崩了, 之前通过 ACM 会员可以每年 $25 享受 O'REILLY 在线图书馆服务...现在没了





开始有小伙伴加入承担 pythonisa 周刊的翻译, 从来没提醒过, 可就这么默默坚持下来了...


[皱眉]每周新闻资讯 怎么能错过 
    what f**k 还能这样玩? 还有这东西?

无法同意更多... 很多社区贡献看起来辛苦, 其实受益最多的, 就是主动承担者也.

好文笔,感叹号年度配额: 1/3


(邮件列表地址, 当成正常邮件发送邮件就好, 不用注册, 不用翻越...)


就是四处 是也乎,( ̄▽ ̄) 的那个大妈:

私自嗯哼: ZoomQuiet (订阅号: ZoomQuiet42)
公开课程: 蟒营 (订阅号: Mainium)
历史吐糟: Chaos42 (订阅号 PythoniCamp)

as 创始组织者:
    PyChina (订阅号: PyChinaOrg)
        GDG珠海 (订阅号: GDG-ZhuHai)
        TFUG珠海 (订阅号: ZH_TFUG)



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**2021.01.11** 因大妈再次创业暂停定期开设, 转换为预约触发:
  • + 扫描预约入群, 学员每满 42 人即启动新一期训练营 ;-)
  • 101camp22.7
  • + 任何问题, 随时邮件提问可也: