ubuntu16.04,卸载系统自带的python3.5引发了一宗惨案,好在最终完美解决
https://blog.csdn.net/qq_29935433/article/details/105568942?utm_medium=distribute.pc_relevant_t0.none-task-blog-BlogCommendFromMachineLearnPai2-1.nonecase&depth_1-utm_source=distribute.pc_relevant_t0.none-task-blog-BlogCommendFromMachineLearnPai2-1.nonecase
【Ubuntu16.04 升级pip问题】you are using pip version 8.1.1, however version 20.0.2 is available.
https://blog.csdn.net/qq_29935433/article/details/104982952