1. 修改默认Python版本
参考链接:https://blog.youkuaiyun.com/White_Idiot/article/details/78240298
2. 运行Python程序出现ImportError: No module named skimage
参考链接:https://blog.youkuaiyun.com/dc1994dc/article/details/79162886
3. NameError:name ‘xrange’ is not defined
原因:在Python 3中,range()与xrange()合并为range( )
4. Python 安装库报错SSL: CERTIFICATE_VERIFY_FAILED
解决办法:pip --trusted-host pypi.python.org install pkg
pip install mxnet-mkl -i https://pypi.douban.com/simple
pip install tqdm -i https://pypi.douban.com/simple --trusted-host mirrors.aliyun.com
参考链接:https://blog.youkuaiyun.com/kongxx/article/details/51187482
https://github.com/pypa/pip/issues/5448
5. Could not find a version that satisfies the requirement 'pkg-**' (from versions: ) No matching distribution found for *
原因:镜像源的问题
解决办法:pip install -i https://pypi.tuna.tsinghua.edu.cn/simple pkg-** (或者用国内其他镜像源)
参考链接:https://www.cnblogs.com/microman/p/6107879.html
6. How to install Pip on Ubuntu
参考链接:https://itsfoss.com/install-pip-ubuntu/
7. from pip import main ImportError: cannot import name main