# yum update // 更新源中包列表,可省略
# yum -y install epel-release //先安装扩展源EPEL 才能安装pip 否则会报错,可省略,建议执行。使用yum install时提示没有可用软件包 ,执行这条命令后,一般就正常
# yum install gcc python3 python3-devel.x86_ 64 python3-setuptools.noareh python-devel -y
# wget https : //bootstrap .pypa.io/get-pip .py //下载pip
# python3.6 get pip.py //安装PIP
# yum install python-pip // 安装pip 方法2
# pip install --upgrade pip // 更新pip 方法2
将python3作为默认的PYthon
# mv /usr/bin/python /usr/bin/python.bak
# ln -s /usr/bin/python3.6 /usr/bin/python
# vim /usr/bin/yum
将第一行记录#!/usr/bin/python改为#!/usr/bin/python2.7
# vi /usr/libexec/urlgrabber-ext-down
将第一行记录#!/usr/bin/python改为#!/usr/bin/python2.7
# python -V //查看python版本
Python 3.6.8
如果不修改/usr/bin/yum和/usr/libexec/urlgrabber-ext-down这两个文件,将会报错,经过验证的有:
File "/usr/bin/yum", line 30
except KeyboardInterrupt, e:
^
File "/usr/libexec/urlgrabber-ext-down", line 28
except OSError, e:
^