Python 潮流周刊#142：Python 性能优化的进阶之路

Livestreaming technology is often employed to relay live events such as sports, concerts and more generally TV and Radio programmes that are output live. Often shortened to just streaming, livestreaming is the process of transmitting media 'live' to computers and devices. This is a fairly complex and nascent subject with a lot of variables, so in this article, we'll introduce you to the subject and let you know how you can get started.

为什么80%的码农都做不了架构师？>>> 以下文字译自http://wiki.python.org/moin/PythonSpeed/PerformanceTips 这个页面提供了一些帮助改善你的python程序性能的一些点子或小技巧。 自从我在大约1996年编写了第一个”fast python”页

This is the first of 16 tutorials to learn how to use Gamedev Phaser. Before we can start writing the game's functionality, we need to create a basic structure to render the game inside. This can be done using HTML—the Phaser framework will generate the required element.

在用python脚本造大量数据用于测试时，往往由于脚本不够优美，导致造数据需要几个小时甚至十几个小时时间。 可以考虑优化脚本，最近我的一个造数据脚本通过优化，运行时间从十几个小时缩短到了几分钟，特此分享出来！ 优化方案： 1、正式执行时，尽量注释掉所有不必要print语句； 2、list使用appe

The JavaScript exception "right-hand side of 'in' should be an object" occurs when the in operator was used to search in strings, or in numbers, or other primitive types. It can only be used to check if a property is in an object.

很幸运，这篇文章能够被发出来。之所以归类的Python爬虫，因为他的访问机制跟爬虫类似。潜入培训机构，顺出来一份价值2.2W的Python人工智能大纲梦想橡皮擦9月14日那一天，他潜入了一家号称省会最强的培训机构，数据科学家常犯的15个编码错误作者:GeroldCsendes译者:王坤祥策划:凌

PWAs can only be installed using a manifest file when served with the https:// protocol, or when served locally from 127.0.0.1 and localhost URLs with the http:// protocol. They also commonly use APIs that are restricted to secure contexts.

Python周刊 欢迎阅读《 Python周刊》第497期。 写在前面：翻译不易，欢迎阅读；水平有限，万望海涵。部分链接可能需要特殊的上网方式（😓）。欢迎关注微信公众号“Python小灶，和我一起每天学习Python新知识” Welcome to issue 497 of Python Weekly

The JavaScript exception "unparenthesized unary expression can't appear on the left-hand side of '**'" occurs when a unary operator (one of typeof, void, delete, await, !, ~, +, -) is used on the left operand of the exponentiation operator without parentheses.

Apache OpenWhisk runtime for Python v2 Actions (frozen)