NASA实锤对比Py和多种主力数据科学语言

PyCoder

191006 Zoom.Quiet(大妈) 用时 42 分钟完成快译
191006 Zoom.Quiet(大妈) 用时 17 分钟完成格式转抄.

Python 中如何用 Generators 和 Yield
- REAL PYTHON

Learn about generators and yielding in Python. You'll create generator functions and generator expressions using multiple Python yield statements. You'll also see how to build data pipelines that take advantage of these Pythonic tools.

(是也乎:

Generators

可以说, 真蟒, 一己之力, 将 Python 领域所有值得嗯哼的事儿, 这几年全部重新嗯哼了一遍... 这是为了获得完全自主产权的教材, 来构筑课程池?

)

对比 Python, Julia, Matlab, IDL 以及 Java
- NASA.GOV

"We use simple test cases to compare various high level programming languages. We implement the test cases from an angle of a novice programmer who is not familiar with the optimization techniques available in the languages. The goal is to highlight the strengths and weaknesses of each language but not to claim that one language is better than the others."

(是也乎:

实锤了....

NASA

没有一枝独秀, 只有相对优势.

如果自己用 Python 没毛病, 如果公司来, Java 永远正确.

)

正则表达式在 Python 中的性能
- JUN WU

"Working with regex, you have to understand what you are doing: the regex engine for Python, the type of statement you are writing, and alternative tools that are available for your purposes. Yes, there are instances when the re package may not be the best tool to use."

PEG 在 Core Developer Sprint
- GUIDO VAN ROSSUM

"Every year for the past four years a bunch of Python core developers get together for a week-long sprint at an exotic location. These sprints are sponsored by the PSF as well as by the company hosting the sprint."

(是也乎:

老爹真的开始放飞了, 敢于放权给大家玩内核了...

)

Mypy 0.730 发布
- MYPY-LANG.BLOGSPOT.COM

Mypy 0.730 is out, with prettier, colored output and error code support, along with many other fixes and improvements.

(是也乎:

兼容 Py2 的生态圈已经正式起航...再次.

)

Django Bugfix 发布: 2.2.6, 2.1.13 and 1.11.25
- DJANGOPROJECT.COM

讨论

Discussions

Python 3.8.0 候选发行版今天到期
- ŁUKASZ LANGA
如果有人说"知道Python",内心里希望他们知道什么?
- REDDIT

(是也乎:

缩进/历史/黑洞/...

)

您需要知道数学才能成为程序员吗?
- REDDIT

(是也乎:

Yes and Not,

数学不一定要精通, 但是, 数学依赖的逻辑一定得稳.

)

文章,教程和嗯哼

Articles, Tutorials and Talks

用 Python 防止 SQL 注入攻击
- REAL PYTHON

SQL injection attacks are one of the most common web application security risks. In this step-by-step tutorial, you'll learn how you can prevent Python SQL injection. You'll learn how to compose SQL queries with parameters, as well as how to safely execute those queries in your database.

(是也乎:

注入攻击

注入攻击...只是, 也早已有对应模块可以自动防止绝大多数了...

)

用Keras纠正Adam(RAdam)优化器
- ADRIAN ROSEBROCK

Learn how to use Keras and the Rectified Adam optimizer as a drop-in replacement for the standard Adam optimizer, potentially leading to a higher accuracy model (and in fewer epochs).

(是也乎:

Keras 可能又是一个 Panda 级别的作品.

)

简单介绍 Python 中的 StringIO 和 BytesIO
- DANIEL BEACH
- • Shared by Daniel Beach

"For some reason IO streams are a totally underused feature that rarely comes up in most code. We all know that memory if faster than disk IO, this is what I use IO streams for."