蟒週刊-406-值得收藏的22個最經常使用 Python 模塊

原文: PyCoder's Weekly - Issue #406

• 200205 Zoom.Quiet(大媽) 用時 42 分鐘 完成快譯
• 200205 Zoom.Quiet(大媽) 用時 17 分鐘 完成格式轉抄.

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• 如何下架 Python 2 從而提高開發人員幸福感

  • BARRY WARSAW

「Now that LinkedIn engineering has fully embraced Python 3, we no longer have to worry about supporting Python 2 and have seen our support loads decrease. We can now depend on the latest open source libraries and tools, and free ourselves from the constrictions of having to write bilingual Python.」

(是也乎:

LinkedIn 的故事教導咱們...

)

• Python 「 != 」 不是 「 is not 」: 對象對比在 Python

  • REAL PYTHON

In this quick and practical tutorial, you’ll learn when to use the Python is, is not, == and != operators. You’ll see what these comparison operators do under the hood, dive into some quirks of object identity and interning, and define a custom class.

(是也乎:

好可愛的插圖, 油號不匹配真的會出大事兒的

)

• 適用 Python 的簡潔代碼概念

  • RIGEL DI SCALA

「Software engineering principles, from Robert C. Martin’s book Clean Code, adapted for Python. This is not a style guide. It’s a guide to producing readable, reusable, and refactorable software in Python.」

• 世界上 22 個最經常使用的Python軟件包

  • ERIK-JAN VAN BAAREN

「As a starting point, I took a list of the most downloaded Python packages on PyPI over the past 365 days. Let’s dive in and find out what they do, how they’re related, and why they rank so high!」

(是也乎:

最具價值的模塊, 多數沒收錄在內建中:

Urllib3;
Six(2->3 自動兼容);
botocore, boto3, s3transfer, awscli (雲廠商專用模塊);

Pip;Python-dateutil;Requests;
S3transfer;Certifi(SSL 支持模塊我);
Idna(民族文化);
PyYAML(愈來愈經常使用的);

Pyasn1;Docutils;Chardet;

RSA;

Jmespath(叕一個 JSON 支持);

Setuptools;Pytz;Futures;

Colorama;Simplejson;

都是百萬級別的下載量...
)

• 2020 我將如何測試

  • JAMES BENNETT

「Everything I’m currently doing for testing my personal [Python] projects, and the reasoning for why I do things the way I do.」 Interesting read if you’re looking to optimize your testing setup.

(是也乎:

私人項目才玩的起高科技哪,
越是大項目, 越應該選擇無聊的技術桟.

)

• Django 安全笑柄發佈: 3.0.3, 2.2.10, and 1.11.28

  • DJANGOPROJECT.COM

Fixes CVE-2020-7471: Potential SQL injection via StringAgg(delimiter)

(是也乎:

Django 如今分裂爲幾個大產品線,是否正確, 還有待市場檢驗.

)

• Pandas 1.0.0 新特性 (穩定版)

  • PYDATA.ORG

(是也乎:

等了10多年的 1.0 版本

)

討論

Discussions

• 要求推遲對Python 3.10進行一些Python 3.9不兼容的更改

  • PYTHON.ORG

(是也乎:

對歷史兼容什麼時候變的不是第一要求了?

)

文章,教程和嗯哼

Articles, Tutorials and Talks

• Alpine Linux 能構建更大更慢的 Python Docker

  • ITAMAR TURNER-TRAURING

「When you’re choosing a base image for your Docker image, Alpine Linux is often recommended. […] But if you’re using Python, Alpine Linux will quite often: Make your builds much slower. Make your images bigger. Waste your time.」 Related discussion on Hacker News.

(是也乎:

等等,這是 Alpine 的特性嘛? 只針對 Python?

)

• Sets 在 Python

  • REAL PYTHON
  • video

Learn how to work with Python’s set data type. You’ll see how to define set objects in Python and discover the operations that they support. By the end of this course, you’ll have a good feel for when a set is an appropriate choice in your own programs.

(是也乎:

真蟒, 在有了流量後, 開始大力積累收費內容了...

)

• 用 Flask 藍圖設計應用程序

  • REAL PYTHON

In this tutorial, you’ll learn how to use a Flask Blueprint to help you structure your application by grouping its functionality into reusable components. You’ll learn what Blueprints are, how they work, and how you can use them to organize your code.

(是也乎:

蘭圖是 Flask 對應用工程的思考成果,
惋惜, 整個兒 Flask 的生產力被依賴的上游模塊拖亂了,
致使 Django 贏得了一切.

)

• Python 中的類型化函數依賴注入

  • SOBOLEVN.ME
  • • Shared by Nikita Sobolev

「Dependency injection is a controversial topic. There are known problems, hacks, and even whole methodologies on how to work with DI frameworks. It is not the case when using a functional approach.」

• 配置 uWSGI以 進行生產部署

  • PETER SPERL
  • & BEN GREEN
  • (BLOOMBERG)

Tips about avoiding known gotchas when configuring uWSGI to host services at scale — while still providing a base level of defensiveness and high reliability.

(是也乎:

uWSGI 不錯, 由於不可安裝在 windows 中

)

• 用隨機搜索算法在殭屍末日中生存

  • OLEG ŻERO

「Pure python implementation of the random search optimization algorithm as an alternative to the standard gradient descent, given a very silly example.」

(是也乎:

在 世界重啓 那書中, 普遍的討論了人類技術的可靠延續 ;-)
)

• 某位 Pythonista 對 Haskell 的評論

  • YING WANG

(是也乎:

不是 王珢, 是另一位在校學生, 以前推薦過這篇文章.

)

• PyPy 簡介

  • ANDREW ODENDAAL

(是也乎:

好久沒見 PyPy 相關的文章了...

)

• 用 Docker 構建 Python 數據科學 容器

  • FAIZAN BASHIR

(是也乎:

其實, Anaconda 已經做的很好了

)

• 解決 Python，kdb+ 和 BigQuery 中的「最佳大小」問題

  • FERENC BODON
  • • Shared by Ferenc Bodon

好物

Interesting Projects, Tools and Libraries, Projects & Code

• pytracking: 基於PyTorch的視覺跟蹤庫

  • GITHUB.COM/VISIONML

(是也乎:

叕一個追蹤庫, 只是基於 PyTorch, 不知道實時性如何

)

• minibatch: 適用人類的 Python 流處理

  • GITHUB.COM/OMEGAML

(是也乎:

for humans 是個好目標, 只是做到的很是少

)

• inlinec: 用自定義編解碼器在 Python 中編寫內聯 C 函數

  • GITHUB.COM/GEORGEK42

(是也乎:

叕一種嵌入 C 代碼的形式

)

• express-your-self: 編寫沒有任何聲明的Python

  • GITHUB.COM/CHRISTIANSCOTT

(是也乎:

超越推導

)

• hpy: 設計一個更好的 API 來擴展 C語言中給 Python

  • GITHUB.COM/PYHANDLE

(是也乎:

H 就是 handle,
爲 C 提供更好的 Python 接口,
這個思路很靠譜哪.

)

• pandas-vet: 用以檢驗 Pandas 代碼的 Flake8 插件

  • GITHUB.COM/DEPPEN8
  • • Shared by Python Bytes FM

(是也乎:

Flake8 終於開始關注 Pandas 了

)

• mquest: 乘法和除法問題生成器

  • GITHUB.COM/JONATHANWILLITTS
  • • Shared by Jonathan Willitts

(是也乎:

通過400多期, 9年的積累, 如今 pycoders 週刊,愈來愈多主動分享的消息了

)

• gif: 創建 Matplotlib Gif 動畫的更好方法

  • GITHUB.COM/MAXHUMBER
  • • Shared by Max Humber

(是也乎:

叕一個 gif 動畫製造工具, 嗯哼, 這 logo 很是親切了

使用也很是簡單:

import gif
from matplotlib import pyplot as plt

@gif.frame
def plot(x, y):
    plt.figure(figsize=(5, 3), dpi=100)
    plt.scatter(x, y)
    plt.xlim((0, 100))
    plt.ylim((0, 100))

正常定義好一幀 plt 圖片, 而後指定範圍自動化生成就好, 好比:

from random import randint

frames = []
for _ in range(50):
    x = [randint(0, 100) for _ in range(10)]
    y = [randint(0, 100) for _ in range(10)]
    frame = plot(x, y)
    frames.append(frame)

)

• pystencils: 加快您 NumPy 模板計算速度

  • GITHUB.COM/MABAU
  • • Shared by Martin Bauer

(是也乎:

基於 sympy

)

📆🐍 活動/大會

Events, MeetUp 真的是全球線下活動組織中心

• ⋅ Python Miami

  • February 8 to February 9, 2020
  • USA

• ⋅ DFW Pythoneers Teaching Meeting

  • February 8, 2020
  • TX,USA

(是也乎:

Pythonner 纔是正式的 Python 開發者族羣名哪.

)

• ⋅ PyCascades 2020

  • February 8 to February 10, 2020
  • 波蘭

• ⋅ Edmonton Python User Group

  • February 10, 2020
  • Canada

• ⋅ PiterPy Meetup

  • February 11, 2020
  • ??

• ⋅ Leipzig Python User Group Meeting

  • February 11, 2020
  • 德國

• ⋅ IndyPy Mixer

  • February 11, 2020
  • IN,USA

DAMA

❤️ Happy Pythonic ;-( 大媽私人無責任播報)

• 蟒營 Python 入門班

  • 5py
  • 報名

((￣▽￣):

第五期已經開始報名:

20.2.20 報名截止
20.3.1  正式開課
20.4.12 按時結束

)

• 2020 援助武漢

  • github.com/wuhan2020

(是也乎:

高速完成構建/發佈/傳播, 以及社區聯合的開源項目,
數據不公開, 那就由人來採集再公開.

)

是也乎

NN 3914

• 首發: Issue 406 ~蠎週刊 ~聚集全球蠎事兒 ;-)
• 修訂: issue-406.md

蟒營™Python入門班第5期已開始報名:
計劃:

• 報名截止 2020.2.24
• 正式開課 2020.3.1
• 按時結束 2020.4.12

蟒營™:Py入門班||圖譜||幻燈||維基

• 自懟圈
• 蟒週刊

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