周刊

原文: PyCoder’s Weekly - Issue #365 Requests III: HTTP同时为人类和机器 PYTHON-REQUESTS.ORG Requests is getting a makeover slated for release in 2020: asyncio, HTTP/2, connection pooling, timeouts, Python 3.6+, and more. Python 学习路径 REAL PYTHON Step-by-Step Python learning paths and study plans for beginner, intermediate, and advanced Python developers. (是也乎: 俺就赞个图, 真正的自学路径, 不可能按照这种来的… 入门, 其实就一瞬间…建立/有意识的知道如何建立任意命题的 MVP 就 KO 80% 问题了. ) 在您组织内打包 Python 嗯哼 STEFAN SCHERFKE What do you do when your organization uses Python for in-house development and you can’t (or don’t want to) make everything Open Source? Where do you store and manage your code? How do you distribute your packages? Stefan lays out his approach in this detailed article. (是也乎: gitlab+conda ? 有趣的经验… $ ownconda –help Usage: ownconda [OPTIONS] COMMAND [ARGS]… Support tools for local development, CI/CD and Conda packaging. Options: –help Show this message and exit. Commands: build Build all recipes in RECIPE_ROOT in the correct… check-for-updates Update check for external packages in RECIPE_ROOT. ci Run a GitLab CI pipeline locally. completion Print Bash or ZSH completion activation script. dep-graph Create a dependency graph from a number of Conda… develop Install PATHS in develop/editable mode. gitlab Run a task on a number of GitLab projects. lint Run pylint for PATHS. make-docs Run sphinx-build and upload generated html… prune-index Delete old packages from the local Conda index at… pylintrc Print the built-in pylintrc to stdout. pypi-recipe Create or update recipes for PyPI packages. sec-check Run some security checks for PATHS. show-updated-recipes Show updated recipes in RECIPE_ROOT. test Run tests in PATHS. update-recipes Update Conda recipes in RECIPE_ROOT. upload Upload Conda packages in PKG_DIR. validate-recipes Check if recipes in RECIPE_ROOT are valid. 原来是 ownconda 的广告. ) 通过 Vettery 找 Python 相关工作 VETTERY sponsor Vettery specializes in developer roles and is completely free for job seekers. Interested? Submit your profile, and if accepted, you can receive interview requests directly from top companies seeking Python devs. Get started → (是也乎: 有远程 SOHO 的, 但是, 首先能用英文流畅的交流是个关键门槛. ) Flask vs Django: 选择你的 Python Web 框架 DAMIAN HITES What are the main differences between Django and Flask? What are their respective strengths and weaknesses? Read Damian’s article to find out. (是也乎: 不涉及复杂功能, 数据库… 俺用 Bottle ) 基于 NASA Image Search API 造作个 Python GUI 应用 MIKE DRISCOLL Learn how to build a Python GUI app for browsing the NASA image library from scratch using the wxPython toolkit. (是也乎: wxPython … 上古神品…在 Qt 开源后, 几乎无人讨论了… ) Python 仅位置参数 JAKE EDGE Inside baseball about PEP 570. (是也乎: 前几周已经嗯哼过几篇了.. ) 讨论 Discussions ...

原文: PyCoder’s Weekly - Issue #364 尝试 Python 3 用 asyncio 来并发 REAL PYTHON video Learn how to speed up your Python 3 programs using concurrency and the asyncio module in the standard library. See step-by-step how to leverage concurrency and parallelism in your own programs, all the way to building a complete HTTP downloader example app using asyncio and aiohttp. (是也乎: 叕一则, REAL PYTHON 的嗯哼, 难道, 周刊已经被收购了? ) Python 用于拍摄黑洞照片 MIKE DRISCOLL “Scientists have used a new algorithm to take a photo of a black hole. One of the most exciting parts about it to me is that they used a lot of Python libraries to do the magic.” (是也乎: 虽然 Python 慢, 但是, 想看到黑洞, 还是靠咱… ) Django: 保持逻辑模板(和视图) BLOT.IM Solid advice! Keep your Django templates and views clean by moving application logic into model methods and model managers. 如何不停机在 Django 中重建索引 REAL PYTHON In this step-by-step Python tutorial, you’ll get a solid understanding of the limitations of Django migrations by tackling a well known problem: creating an index in Django without downtime. (是也乎: ) 在 PyCharm的 PyCon Booth 上与 Python 内容创建者们见面 JETBRAINS.COM I’ll be there, the Real Python team will be there, and so will Mike Kennedy from Talk Python, Brian Okken from Test & Code, Matt Harrison, the PyBites team, Chris Medina, and Miguel Grinberg. Be sure to stop by and say hi :) Thanks JetBrains! list.sort() 嗯哼 sorted(list) FLORIAN DAHLITZ Taking a closer look at Python’s built-in list sorting methods with regards to memory consumption and time efficiency. Nice writeup! PyCon 2019 接近售磬 PYCON.BLOGSPOT.COM Get your ticket before it’s too late :) 讨论 Discussions ...

原文: ElixirWeekly - Elixir Community Newsletter, one email every Thursday. Every Thursday: No frills, no click-through, no spam. 当周 不老药 This week in Elixir Phoenix 的 Params 模块 The Params modules pattern can be used in Phoenix to validate and massage a controller action’s params into data that can be passed to contexts. (是也乎: 所谓中间件模块 ) 使用 GenServer 进行夜间任务 Eric set up a nightly process that uses OTP primitives to run nightly tasks for his games. Nice! (是也乎: 只是为了游戏刷分? ) ExDoc v0.20 Wojtek wrote about keyboard shortcuts, autocompletion, full-text search, and other stuff in the latest version of ExDoc. Micro: 读取 elixir 中的 cmd pipes Regis wrote a blog post about reading pipes from the command line in Elixir CLI tools. 清理 Phoenix 控制器操作 Damon writes about a pattern he came across that helps when you need to pass a lot of variables to the view / template. (是也乎: 在 Elixir 中, 多少算大量? ) Elixir 协议，它们如何工作? erlang 的观点 Mariano gives “the erlang perspective” on protocols in Elixir. 📆🐍 社区 Even more from around the Elixir community ...

原文: PyCoder’s Weekly - Issue #363 PEP 570 (仅位参数)已被接受 PYTHON.ORG This PEP introduces a new syntax, /, for specifying positional-only parameters in Python function definitions. Looks useful for getting tighter control over how a library API can be called (i.e. preventing positional params from being called as keyword arguments). This will also allow for some function call speed optimizations in the future. (是也乎: 严格参数传输,以便优化…反正就是越来越 C++ 呗… 老爹一退休就乱来. ) 惯用式 Pandas: 你可能不知道的技巧和特征 REAL PYTHON video In this series you’ll see how to use some lesser-used but idiomatic Pandas capabilities that lend your code better readability, versatility, and speed. (是也乎: 忘记的就是不重要的 不知道的就是不必要 当然世界并不是这样 (￣▽￣) ) 用 PyCharm 成为 Python 大狮 JETBRAINS sponsor PyCharm is the Python IDE for Professional Developers by JetBrains providing a complete set of tools for productive Python, Web and scientific development. Be more productive and save time while PyCharm takes care of the routine. (是也乎: 通过 IDE 变成 guru ? 喝多了… ) 本地 LRU 缓存 MOSHE ZADKA How to avoid shared global state when using the functools.lru_cache decorator from the standard library. Python 3.7 使用慢加载 INADA NAOKI CPython 3.7 has a new feature (-X importtime) for profiling import time and this article gives you a good overview on how to use this to reduce application startup time. AvantPy: 友好的追溯 ANDRÉ ROBERGE AvantPy provides friendlier Python tracebacks, translated into various languages, to help beginners learn programming. Right now the project is still in its early stages and the maintainer is looking for contributors. (是也乎: 早期…寻求志愿者… 只是, 这种追踪代码运行状态, 对于初学有什么帮助? ) 讨论 Discussions ...