python2.7
vi /usr/bin/pip
修改前
from pip import main
if __name__ == '__main__':
sys.exit(main())
修改后
from pip import __main__ //这行也要修改
if __name__ == '__main__':
sys.exit(__main__._main())//增加__main__._
测试
python3.5
vi /usr/bin/pip3
修改前
from pip import main
if __name__ == '__main__':
sys.exit(main())
修改后
from pip import __main__ //这行也要修改
if __name__ == '__main__':
sys.exit(__main__._main())//增加__main__._
测试