liunx pip安装

方法一

wget https://bootstrap.pypa.io/get-pip.py  
python get-pip.py 

方法二

wget https://pypi.python.org/packages/source/p/pip/pip-1.3.1.tar.gz --no-check-certificate   
tar xvf pip-1.3.1.tar.gz  
python pip-1.3.1/setup.py install 

方法三

    yum install -y epel-release
    yum install -y python-pip