原文: PyCoder's Weekly - Issue #398

• 191211 Zoom.Quiet(大妈) 用时 42 分钟 完成快译
• 191211 Zoom.Quiet(大妈) 用时 17 分钟 完成格式转抄.

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• MicroPython: Python编程硬件简介
  • REAL PYTHON

Are you interested in the Internet of Things, home automation, and connected devices? In this tutorial, you’ll learn about MicroPython and the world of electronics hardware. You’ll set up your board, write your code, and deploy a MicroPython project to your own device.

(是也乎:

参考: PyCon19China 南宁场私人回顾 blog.PyChina.org | 蠎中国社区 blog

国内资深玩家的有关分享...

)

• PEP 591: 在 typing 中添加最终的限定词
  • PYTHON.ORG

This PEP proposes a final qualifier to be added to the typing module—in the form of a final decorator and a Final type annotation—to serve three related purposes: Declaring that a method should not be overridden, declaring that a class should not be subclassed, declaring that a variable or attribute should not be reassigned.

• 正确进行 Python 配置
  • MICHAEL WHALEN

“Let’s talk about configuring Python applications, specifically the kind that might live in multiple environments – dev, stage, production, etc.”

(是也乎:

充分利用内置能力, 精心规划好开发/测试/运营环境参数,综合使用环境变量, 以及自动加载机制...

当然, 俺推荐 Borg 类.

)

• 8 个超棒 pytest 插件
  • OPENSOURCE.COM
  • • Shared by Python Bytes FM

“One of the best aspects of the popular Python testing tool is its robust ecosystem. Here are eight of the best pytest plugins available.”

• 两个恶意 Python 库盗用 SSH 和 GPG 密钥
  • LUKAS MARTINI

Also see the related discussion on Hacker News.

• Instagram 取消 Python 垃圾收集
  • INSTAGRAM ENGINEERING BLOG

How Instagram’s Django backend runs with GC disabled and gets a 10% performance gain.

(是也乎:

大厂商都必须有能力根本自己业务特点来定制运行时环境.

)

• Python 代码风格和 Pythonic 习语/惯用法
  • PYTHON-GUIDE.ORG

A review of general concepts, language idioms, and Pythonic coding conventions.

(是也乎:

已有中译: 代码风格 — The Hitchhiker's Guide to Python

来自:

Python 宇宙搭车客指南

)

• Monads 没您想像的那么难
  • YING WANG

Monads explained with Python code examples.

(是也乎:

不是那个神人 王垠;用 Py 来喷 Haskell...

)

• CPython 3.8.1rc1 可用于测试
  • PYTHON.ORG

讨论

Discussions

NIL

文章,教程和嗯哼

Articles, Tutorials and Talks

• 膨胀常数因素以及 Python 比 C 更快的原因 (PDF)
  • MEHRDAD NIKNAMI

Why constant-factor differences in algorithm complexity do matter in practice.

(是也乎:

每隔几年都被挖出来嗯哼一下哪...沈游侠将有专门课程演示这一事实...)

• Beautiful Soup: 用 Python 构建网络抓取工具
  • REAL PYTHON

In this tutorial, you’ll walk through the main steps of the web scraping process. You’ll learn how to write a script that uses Python’s requests library to scrape data from a website. You’ll also use Beautiful Soup to extract the specific pieces of information that you’re interested in.

(是也乎:

美汤还活着哪...就象 jQuery 一样上古神器了...

以及, 还是对 Ajax 们没办法)

• Python 中多线程与多进程处理
  • AMINE BAATOUT

A discussion of misconceptions about multithreading in Python.

(是也乎:

简单的多, 能用多进程, 绝对嫑尝试多线程

)

• Python 中的变量
  • REAL PYTHON
  • video

Learn how every item of data in a Python program can be described by the abstract term “object,” and how to manipulate objects using symbolic names called “variables.”

• 3 个用 Python 构建的拼写检查器软件包
  • THEAUTOMATIC.NET

“Learn what packages can work as a spell checker in Python. We’ll discuss pyspellchecker, TextBlob, and autocorrect for performing this task.”

• 用 Python 和 Tesseract, OpenCV 以及 Pytesseract 实现 OCR
  • FILIP ZELIC

Get started with Tesseract and OpenCV for OCR in Python: preprocessing, deep learning OCR, text extraction and limitations.

(是也乎:

)

• 用机器学习来学习如何压缩
  • VKS.AI
  • • Shared by Pascal van Kooten

shrynk is a Python package that uses machine learning to compress your Pandas DataFrame (or Python dictionaries).

(是也乎:

.ai 的域名开始流行, 猜猜哪家公司注册的最多?

)

• 在 Python 中安装和更新软件包
  • ERIK MARSJA

Learn how to install, use, and update Python packages using pip, conda, and Anaconda Navigator.

(是也乎:

pip/conda 是好的, 但是, GUI 的 Anaconda Navigator 就比较坑了...

)

• Python 字符串和字符数据(交互式测验)
  • REAL PYTHON

Test your understanding of Python strings and character data.

(是也乎:

简单的问卷来检验自己对字符以及字符串这两个基础对象的理解

)

• DeepMind MuZero 伪代码演练
  • DAVID FOSTER
• 可能很有用的 Python Snippets
  • MARTIN HEINZ
• 用 Python 创建用于 Childhood Memories 电子邮件服务
  • ROBIN WILSON

好物

Interesting Projects, Tools and Libraries, Projects & Code

• Metaflow: Netflix 的Python数据科学框架
  • METAFLOW.ORG

(是也乎:

以及早年的 Disney 们, 都有自己的 Python 框架/平台来管理海量硬件以及数据....

)

• GoCheese: 专用Python软件包存储库和缓存代理
  • CYPHERPUNKS.RU
• parse: 用 format() 语法解析字符串
  • PYPI.ORG
• py27hash: Python 2.7 Hashing and Iteration in Python 3
  • GITHUB.COM/DAVIDMEZZETTI
  • • Shared by David Mezzetti

(是也乎:

永远的 Py2.7 ...

..性能不是此程序包的目标

只是海量 Py 2.7 代码想直接运行在 Py 3 中, 还要海量的工具支持

)

• rotvpn: 用Python在云中运行自己的VPN
  • GITHUB.COM/JAR-O
  • • Shared by James Robson

(是也乎:

VPN 产品哪, 还是 go 来的方便,,,关键能提供预编译成品)

• schemathesis: 开放API模式下 基于属性的测试
  • GITHUB.COM/KIWICOM
  • • Shared by Dmitry Dygalo

📆🐍 活动/大会

Events, MeetUp 真的是全球线下活动组织中心

• ⋅ Python Miami
  • December 14 to December 15, 2019
  • USA
• ⋅ DFW Pythoneers 2nd Saturday Teaching Meeting
  • December 14, 2019
  • TX,USA
• ⋅ Inland Empire Python Users Group Monthly Meeting
  • December 17, 2019
  • 英国
• ⋅ Heidelberg Python Meetup
  • December 18, 2019
  • 德国
• ⋅ PiterPy Breakfast
  • December 18, 2019
  • 404 了...
• ⋅ PyData Bristol Meetup
  • December 19, 2019
  • 英国
• ⋅ Python Northwest
  • December 19, 2019
  • 英国
• ⋅ PyLadies Dublin
  • December 19, 2019
  • Ireland

DAMA

❤️ Happy Pythonic ;-(大妈私人无责任播报)

• 蟒营 Python 入门班
  • 4py :-}
  • 5py ;-)

((￣▽￣):

第4期已开始, 为期6周;

    当前 ch2200112 按时结束

年后第5期就来:

    200203 可以上线

)

是也乎

NN 3858

• 首发: Issue 398 ~蠎周刊 ~汇集全球蠎事儿 ;-)
• 修订: issue-398.md

101camp4py 进行中

官网 https://py.101.camp/

• 191201 正式开课
• 200112 按时结束
• 5py 大年初十开始报名

蟒营™:Py入门班||图谱||幻灯||维基

• 自怼圈
• 蟒周刊

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