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Class method differences in Python: bound, unbound and static
...>>> C.__dict__['foo'].__get__(None, C)
<function C.foo at 0x10a72f510>
>>> C.__dict__['a'].__get__(None, C)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'list' object has no attribute '__get__'
This is because the lis...
Image comparison - fast algorithm
... probably much faster than the other two is using semantic texton forests (PDF). This involves extracting simple keypoints and using a collection decision trees to classify the image. This is faster than simple SIFT keypoint matching, because it avoids the costly matching process, and keypoints a...
Storing Data in MySQL as JSON
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MySQL 5.7 Now supports a native JSON data type similar to MongoDB and other schemaless document...
How do I create a simple 'Hello World' module in Magento?
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First and foremost, I highly recommend you buy the PDF/E-Book from PHP Architect. It's US$20, but is the only straightforward "Here's how Magento works" resource I've been able to find. I've also started writing Magento tutorials at my own website.
Second, if you have a choi...
Fast Linux File Count for a large number of files
...ething like this:
1 => 38,
65 => 95052,
66 => 12823,
67 => 10572,
69 => 67275,
70 => 8105,
71 => 42052,
72 => 1184,
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What are the dangers when creating a thread with a stack size of 50x the default?
... | H |
--+---------+---------+---------+
S | - | 100.80 %| 120.72 %|
--+---------+---------+---------+
G | 99.21 %| - | 119.76 %|
--+---------+---------+---------+
H | 82.84 %| 83.50 %| - |
--+---------+---------+---------+
Rates are calculated by dividing the row's value ...
Is a Python list guaranteed to have its elements stay in the order they are inserted in?
...
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Cookie blocked/not saved in IFRAME in Internet Explorer
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The increasing irrelevance of P3P. cylab.cmu.edu/files/pdfs/tech_reports/CMUCyLab10014.pdf If it's so legally binding, there'd be lawsuit precedence by now proving such. It's viewed with such high esteem that all but one of my competitors even bother posting one in the first plac...
App Inventor 2 IoT 参考文档 · App Inventor 2 中文网
...lueToothLE 拓展
【科普】低功耗蓝牙(BLE) 和 经典蓝牙(SPP) 的区别
【BLE通用教程】App Inventor 2 低功耗蓝牙(BLE) 硬件接入、数据通信及IO控制
【经典蓝牙】HC-05 经典蓝牙模块开发
【乱码问题】HC-05/BLE 蓝牙通信数据乱码？接收到...
App Inventor 2 TextboxUtil 扩展：消除输入框焦点（光标） · App Inventor 2 中文网
...后，一般比如点“确认”按钮，这时调用拓展消除输入框的焦点：
.aix 拓展下载：
com.gordonlu.textboxutil.aix
TextBoxToolsv3 拓展也能实现，具体请自行研究。
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