... Actually, set literals have been backported to Python 2.7, so they are not only available strictly in Python 3. – Jim Brissom May 25 '11 at 20:56 14 ...

I'm wondering if there is a "best" choice for collation in MySQL for a general website where you aren't 100% sure of what will be entered? I understand that all the encodings should be the same, such as MySQL, Apache, the HTML and anything inside PHP. ...

...cfa959a70/pickle_vs_json.py python pickle_vs_json.py Results with python 2.7 on a decent 2015 Xeon processor: Dir Entries Method Time Length dump 10 JSON 0.017 1484510 load 10 JSON 0.375 - dump 10 Pickle 0.011 1428790 load 10 Pickle 0.098 - dump 20 JSON ...

...r the CPU to be constantly active. Instead, an alarm can be used (see UrsAI2Alarm ). Motivation For some projects it is necessary to prevent the associated app from being deactivated by the operating system. A typical example would be that sensor data should be sent regularly to an MQTT bro...

...ains characters encoded in a way that is not valid in UTF-8 (as @Klas Lindbäck stated in a comment) - that's what the sed error message is trying to say by invalid byte sequence. Most likely, your input file uses a single-byte 8-bit encoding such as ISO-8859-1, frequently used to encode "Western E...

...为gif的话，设计视图中图片预览会展示动图，但是通过AI伴侣测试或编译成apk真机测试，就会发现图片不会动，只会展示静态图片。那么问题来了，如何展示动图/动画效果呢？有2种思路参考这里。 当然，也可以使用本文介绍的...

...称组成。 蓝牙设备列表为空？ 你可能没有开启AI伴侣或编译后App的发现蓝牙权限，这里以AI伴侣为例，勾上即可： 需要过滤蓝牙设备列表？ 请参考《App Inventor 2 过滤蓝牙设备列表》。 可用状态 如果设备上...

...他们的速度和间隔，启用即可自动移动。 2、因为是用AI伴侣测试，因此不能退出。需要编译成apk安装到安卓手机运行才能退出。

...幕“标题”属性设为“蓝牙控制LED”，并在手机上运行AI伴侣进行测试连接。 　　1. 界面设计 　　向界面编辑区拖入标签、按钮、列表选择框组件及蓝牙客户端组件，并进行相应的界面设计，如图13-3所示。 　 图13-3 手机App...

...的，重复的情况下，事件都不会执行，如： 使用AI伴侣测试的时候，不会报错，但是事件中的代码会忽略掉。 当然代码重复的话，前面会有错误叉叉的提醒，是非常容易发现问题的。但是编译apk时是无法通过的：