realpython

创建用 Google 登录的 Flask 应用程序
- REAL PYTHON

In this step-by-step tutorial, you'll create a Flask application that lets users sign in using their Google login. You'll learn about OAuth 2 and OpenID Connect and also find out how to implement some code to handle user session management.

(是也乎:

如何基于一个不存在的网站完成用户登录检验?

)

Guido 有关 Python 上 PEG Parsers
- GUIDO VAN ROSSUM

"Some years ago someone asked whether it would make sense to switch Python to a PEG parser. [... ] I looked into it a bit and wasn't sure what to think, so I dropped the subject. Recently I've learned more about PEG (Parsing Expression Grammars), and I now think it's an interesting alternative to the home-grown parser generator that I developed 30 years ago when I started working on Python."

(是也乎:

老爹难得放话了...

有趣, 但是, 只能放弃.

)

Pip 决定前前兼容 Python 2.x
- PYPA.IO

"pip will continue to ensure that it runs on Python 2.7 after the CPython 2.7 EOL date. Support for Python 2.7 will be dropped, if bugs in Python 2.7 itself make this necessary (which is unlikely) or Python 2 usage reduces to a level where pip maintainers feel it is OK to drop support. The same approach is used to determine when to drop support for other Python versions."

(是也乎:

顺应民意...

无论官方是否支持 Py2 代码, 海量 Py2 only 的包是应该长久支持的.

)

日志在 Python
- REAL PYTHON
- video

Python provides a logging system as a part of its standard library, so you can quickly add logging to your application. In this course, you'll learn why using this module is the best way to add logging to your application as well as how to get started quickly, and you will get an introduction to some of the advanced features available.

(是也乎:

视频教程,如何日志... 不过,这事儿, 在Python 不是太困难, 而是太容易, 以至难以决定用哪种姿势...

)

通过构造复本来理解 Celery 如何工作
- KOMU WAIRAGU
- • Shared by Komu Wairagu

"A delayed job processor (also called a background processor, asynchronous task queue, etc.) is a software system that can run code at a later time. Examples of such software includes Celery, Resque, Sidekiq, and others. In this post we will try and understand how these things work by building a clone/replica of such software."

简化您的 Python 开发人员环境
- MASON EGGER
- • Shared by Python Bytes FM

Three tools (pyenv, pipx, pipenv) make for smooth, isolated, reproducible Python developer and production environments.

(是也乎:

混合这么多环境管理工具, 怎么叫简洁呢?

)

讨论

Discussions

针对还没发布的 Python 3.8 特性的最佳实践来了
- RAYMOND HETTINGER

"As a Python 3.8 learning exercise, I'm using the walrus operator, / notation, and f= at every opportunity and then evaluating the result for clarity."

(是也乎:

也就是说, 现在的 Python 版本是

OPP ~ 面向最佳实践编程?

)

在没有导入 NumPy 的情况下从 Pandas 使用 NumPy
- TWITTER.COM/JUSTMARKHAM

"Want to use NumPy without importing it? You can access all of its functionality from within pandas... "

Writing the Digits of Pi Backwards... in Python?
- REDDIT

;-)

文章,教程和嗯哼

Articles, Tutorials and Talks

用 Mixins 使 Python 类更加模块化
- ALEKSEY BILOGUR
- • Shared by Aleksey Bilogur

"In this article I want to discuss mixins: what they are, how they work, and when they're useful. Hopefully after reading this brief article you will be ready to experiment with this pattern yourself in your own projects."

(是也乎:

别写类,就是纯粹模块了 )

Keras Learning Rate Schedules and Decay
- ADRIAN ROSEBROCK

In this tutorial, you will learn about learning rate schedules and decay using Keras. You'll learn how to use Keras' standard learning rate decay along with step-based, linear, and polynomial learning rate schedules.

如何用 np.arange()
- REAL PYTHON

In this step-by-step tutorial, you'll learn how to use the NumPy arange() function, which is one of the routines for array creation based on numerical ranges. np.arange() returns arrays with evenly spaced values.

(是也乎:

arange

fig

可爱...

)

保卫 Python 的未来, by Hunting Black Swans
- PYTHONPODCAST.COM
- podcast

An interview with Russell Keith-Magee about identifying potential black swan events for the Python ecosystem and how to address them for the future of the language and its community.