1、ubuntu默认有python3,但是我们测试需要python2的环境
https://segmentfault.com/a/1190000022572643
sudo apt install python2
python2 -V
ls /usr/bin/python*
sudo update-alternatives --list python
sudo update-alternatives --install /usr/bin/python python /usr/bin/python2 1
sudo update-alternatives --install /usr/bin/python python /usr/bin/python3 2
sudo update-alternatives --list python
sudo update-alternatives --config python
2、opencv
https://blog.csdn.net/SWULWJ/article/details/113913455
3、pip 安装不上 opencv-python
https://www.machunjie.com/trouble/code_error/772.html#respond
安装opencv-python过程遇到其他问题
https://blog.csdn.net/weixin_44996884/article/details/108678298
https://blog.csdn.net/u011092188/article/details/64123561/
sudo python -m pip install --upgrade --force pip
1.更换国内源
https://zhuanlan.zhihu.com/p/142014944
2.安装搜狗输入法
https://www.linuprobe.com/ubuntu20-04-install-sogou.html
3、创建备份-snapshot
https://os.51cto.com/art/201911/606891.htm
4、安装python2
https://segmentfault.com/a/1190000022572643
切换python2和python3
sudo update-alternatives --config python
5、安装adb 和 fastboot
https://www.yundongfang.com/Yun40299.html
6、安装pip
https://blog.csdn.net/snowdream86/article/details/106160597 失败
安装失败:sudo python2 get-pip.py
https://blog.csdn.net/qq_41560595/article/details/114595847 成功
使用上面安装有两个
whereis get-pip.py.1
get-pip.py: /usr/bin/get-pip.py /usr/bin/get-pip.py.1
sudo rm -rf /usr/bin/get-pip.py
sudo rm -rf /usr/bin/get-pip.py.1
然后使用第二个链接重新搞,安装pip成功
pip --version
pip 20.3.4 from /usr/local/lib/python2.7/dist-packages/pip (python 2.7)
7、安装python-numpy、scipy、matplotlib 成功
安装opencv 失败
https://blog.csdn.net/wangyulj/article/details/79017312
axel -n 300 https://github.com/opencv/opencv/archive/2.4.13.6.zip