- pip、pip3安装
sudo apt-get install python-pip
sudo apt-get install python-pip3 - pip版本升级
sudo pip install --upgrade -i https://pypi.tuna.tsinghua.edu.cn/simple pip
sudo pip3 install --upgrade -i https://pypi.tuna.tsinghua.edu.cn/simple pip
- pip版本查看
pip -V
pip3 -V - 问题
Traceback (most recent call last):
File "/usr/bin/pip", line 9, in <module>
from pip import main
ImportError: cannot import name 'main'
解决办法:
sudo 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__.
- 修改pip指向
问题:有时电脑上pip和pip3 都指向了python3. 为了让pip指向python2,修改如下
which pip但看pip所在位置
如:/usr/local/bin/pip
sudo vim /usr/local/bin/pip修改pip指向
将其第一行 #!/usr/bin/python3修改成 #!/usr/bin/python2
pip -V查看pip已经指向python2了