Centos7安装Python多版本

• Python 文件链接
  https://www.python.org/ftp/python

• 下载
  wget https://www.python.org/ftp/python/3.6.3/Python-3.6.3.tar.xz

• 解压
  tar xf Python-3.6.3.tar.xz -C /usr/local/src/

• 安装
  cd /usr/local/src/Python-3.6.3
  ./configure --prefix=/usr/local/python3
  make && make install

• 检查pip
  /usr/local/python3/bin/pip3 install --upgrade pip
  /usr/local/python3/bin/pip3 list

• 创建软连接
  ln -s /usr/local/python3/bin/python3.6 /usr/bin/python3

• 检查
  python3 -v