Python

$ pip install –upgrade packageName

https://pep8.org/#naming-conventions

http://pythontutor.com/ VISUALIZE CODE AND GET LIVE HELP, 透過圖像顯示可以容易了解 Python 中變數, 物件, 指標, list, tuple, dict, 等等, 其內部是如何操作

https://www.roytuts.com 這個網站有蠻多例子可學, 先看關於 Face detection 的例子, 裡頭有用到 openCV.

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