Traceback (most recent call last): File “/home/xwt/.conda/envs/smpl/bin/pip“, line 5, in ＜module＞

Traceback (most recent call last):   File "/home/xwt/.conda/envs/smpl/bin/pip", line 5, in <module>     from pip._internal.cli.main import main ImportError: No module named main

解决方法：
这时直接打开终端，在终端中输入

sudo gedit  /home/xwt/.conda/envs/smpl/bin/pip

这时打开了pip文件，修改

from pip import main
if __name__ == '__main__':
    sys.exit(main()) 

为

   from pip import __main__ //修改
    if __name__ == '__main__':
        sys.exit(__main__._main())//修改