蠎加载 164 ~蠎周刊 ~汇集全球蠎事儿 ;-)

原文: Import Python Weekly Newsletter - Issue No 164
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~ 文章, Blog, 教程...

Python 3 cheatsheet
- python3

What's new in Python 3 via code snippets.

(是也乎:

文字版本的作弊条儿...

Py 3.7 有了内置的 breakpiont 支持, 可以不依赖 IDE 进行单点嗯哼了...

可是...好吧...

)

俺的 Python 开发环境, 2018 版 - Jacob Kaplan-Moss
- pyenv, pipsi

For years I’ve noodled around with various setups for a Python development environment, and never really found something I loved – until now.

(是也乎:

Python 的开发环境至今没有很好的解决几个关键问题:

模块依赖, 多版本环境切换, 应用打包发布/备份/部署/升级/...

当前最靠谱的可能就是这个组合了: 用 Pyenv 管理版本环境, 在其中用 Pipenv 管理模块依赖, Pipsi 作控制界面...

可是, 依然没有触及发布后场景...当然,现在有 Docker 了... 问题是 Docker 在 windows 世界中实在是那什么....

)

用 Python 收集您自己的 Fitbit 数据
- fitbit

I’m going to teach you how to collect your own Fitbit data using nothing but a little Python code.

(是也乎:

现在智能硬件, 如果没有一个易用的云接口,简直了...

)

standford 电影评论数据库的情感分类
- machine learning

In this tutorial we will be using the hand labelled Standford movie review database (0) to build a sentiment classifier. Our work will highlight how to use Jupyter Notebooks with Python, Scikit-learn, and Pandas (including Numpy) to build and crossvalidate a sentiment classifier. We will also throw in a bit of EDA with the help of Matplotlib and Seaborn.

(是也乎:

公开数据集越来越多了... 但是, 分析套路越来越一致化

EDA 是唯一能结合直觉的阵地了...

不过用 seaborn 进行图表风格化就是个人口味选择了... )

象 Python 一般调试 C
- debugging

I use the Python interpreter interactively and pdb (as well as ipdb) a lot and they let me understand my programs' state and test new things out quickly.

(是也乎:

pdb 体验的 gdb 模拟...

)

Elasticsearch 和 Django 第 1 部分
- elasticsearch

Searching from a complex set of data has become a routine in almost all kind of applications. So I am creating a series on Elasticsearch integration with Django. I this part of series, I will be giving you a brief information about Elasticsearch and its installation on a Linux based system.

PEP 563 提及 Python 4.0, 究尽什么事儿? - Reddit discussion
- 4.0

PEP 563 as well as this page declare that postponed evaluation of type annotations will become the default in Python 4.0. The authors don't give any further explanation nor do they seem to think there is any further explanation required. I've never seen Python 4.0 mentioned seriously before and I find this a bit unsettling. Can somebody provide more details?

(是也乎:

没有回头路了...

Py3 到 Py4 就象 Py1 到 Py2 没有伤害...哈?

)