• PYTHON.ORG
• https://pycoders.com/link/3235/we

Python 2.7 is retired and became EOL on Jan 1, 2020. The last 2.7 release will be in April 2020.

“With Python 2 having reached end-of-life at the start of 2020, Ubuntu and Debian developers continue their work on removing Python 2 at least from the base OS. Work continues on transitioning packages to Python 3 or otherwise ultimately dropping unmaintained packages.”

Learn how to use args and kwargs in Python to add more flexibility to your functions. You’ll also take a closer look at the single and double-asterisk unpacking operators, which you can use to unpack any iterable object in Python.

“So for you developers of async libraries here is a new year’s resolution for you: give back pressure and flow control the importance they deserve in documentation and API.”

Who is Python being designed for? CPython core dev Nick Coghlan discusses Python’s and PyPI’s target audience and design philosophy. Recommended reading.

DjangoCon Europe 2020 will take place in Porto, Portugal from May 27–31, 2020.

ast.literal_eval() vs functools.lru_cache() vs pdb.pm() vs reprlib.recursive_repr() – Which one is your favorite?

“Quite often, I see people being wrong on the internet about Python packaging. But the way in which they’re wrong is subtle, and often passes unnoticed. The issue with much of the discussion is in conflating multiple different things under the term ‘packaging’, and failing to be clear exactly which of them is being discussed or criticized.”

In this step-by-step tutorial, you’ll learn how to start exploring a dataset with Pandas and Python. You’ll learn how to access specific rows and columns to answer questions about your data. You’ll also see how to handle missing values and prepare to visualize your dataset in a Jupyter notebook.

“Testing application performance is hard and time consuming, but there’s a type of test that is both easy to do and has a great impact in performance. In this blog post we will show how to unit test the number of queries to the database your application is making.”

NumPy supports different ways of generating arrays, and this tutorial is going to explore one way of do so, using the np.linspace() function. It returns evenly-spaced numbers and can generate arrays of any dimensionality.

Tips that make your testing experience more enjoyable and more efficient, like filtering warnings, testing stdout/stderr, and parametrization.

This article is about building a computer vision model to automatically grade handwritten mathematical worksheets using Python.

“First rule of optimization is to not do it. But, if you really have to, then I hope these few tips help you with that.”

How PyDist achieves zero-downtime deploys without a typical load balancer and blue/green server infrastructure.

Using Pyramid and Cornice to build and document scalable RESTful web services.

• ERIK MARSJA
• https://pycoders.com/link/3232/web

Python 中的原子无锁计数器

• JULIEN DANJOU

(是也乎:

这个可以有

)

好物

Interesting Projects, Tools and Libraries, Projects & Code

cachew: 持久性缓存/序列化 Powered by Type Hints

• GITHUB.COM/KARLICOSS
• https://pycoders.com/link/3223/web

tmtoolkit: 文本挖掘和主题建模工具包

• GITHUB.COM/WZBSOCIALSCIENCECENTER
• Shared by Markus Konrad
• https://pycoders.com/link/3221/web

vidgear: 适用于 Python 的视频处理框架

• GITHUB.COM/ABHITRONIX
• https://pycoders.com/link/3233/web

(是也乎:

组合解决各种场景/平台中视频常用处理流水的框架...

所图乃大哪...

)

• GITHUB.COM/SOCIALPOINT-LABS
• https://pycoders.com/link/3226/web

(是也乎:

叕一个 docs.google 次生态作品, 当然, 对于我们不存在的...

)

karateclub: 图形数据结构的无监督学习

• GITHUB.COM/BENEDEKROZEMBERCZKI
• https://pycoders.com/link/3242/web

ElasticBatch: Easy Elasticsearch Inserts for Data Processing Workflows

• GITHUB.COM/DKASLOVSKY
• Shared by Daniel Kaslovsky
• https://pycoders.com/link/3231/web

switchenv: Python-Based 工具, 用于管理Bash环境

• GITHUB.COM/ROBDMC
• Shared by Rob deCarvalho
• https://pycoders.com/link/3241/web

(是也乎:

将 Pyenv 的技巧, 单纯抽象为管理系统环境变量,

自动化批量切换不同运行场景时的一组环境变量..

)

• PYPI.ORG
• https://pycoders.com/link/3248/web

(是也乎:

叕一个计时器, 不过,这个项目使用了 真蟒 插图, 也不知道是否授权...

from codetiming import Timer

As a class:

t = Timer(name="class")
t.start()
# Do something
t.stop()

As a context manager:

with Timer(name="context manager"):
    # Do something

As a decorator:

@Timer(name="decorator")
def stuff():
    # Do something

)

📆🐍 活动/大会

Events, MeetUp 真的是全球线下活动组织中心

Heidelberg Python Meetup

• January 8, 2020
• 德国
• https://pycoders.com/link/3206/web

Python North East

• January 8, 2020
• 大英
• https://pycoders.com/link/3207/web

PyStaDa

• January 8, 2020
• Darmstadt
• 德国
• https://pycoders.com/link/3213/web

pyCologne User Group Treffen

• January 8, 2020
• 404
• https://pycoders.com/link/3208/web

Santa Cruz Python Meetup

• January 8, 2020
• USA
• https://pycoders.com/link/3212/web

PyMNTos

• January 9, 2020
• USA
• https://pycoders.com/link/3209/web

Python Atlanta

• January 9, 2020
• USA
• https://pycoders.com/link/3205/web

Yola Python Club 2020

• January 11 to January 12, 2020
• 尼日利亚
• https://pycoders.com/link/3204/web

Python Miami

• January 11 to January 12, 2020
• USA
• https://pycoders.com/link/3211/web

DAMA

❤️ Happy Pythonic ;-(大妈私人无责任播报)

• 蟒营 Python 入门班
• https://py.101.camp/
• 5py ;-)

((￣▽￣):

第4期马上结业:

200112 按时结束

年后第5期就来:

20.2.3 可以上线
20.3.1 正式开课

)

• TWITTER.COM/MARCUSBORBA
• https://pycoders.com/link/3100/web

(是也乎:

网红小视频也出现了...

最后3秒, Python 疯狂反转一切.

)

是也乎

NN 3886

• 200108 Zoom.Quiet(大妈) 用时 42 分钟 完成快译

• 200108 Zoom.Quiet(大妈) 用时 17 分钟 完成格式转抄.