OPS笔记：centos7系统默认python2升级python3
安装python 1 2 3 4 5 6 wget https://www.python.org/ftp/python/3.7.0/Python-3.7.0.tgz tar -zxvf Python-3.7.0.tgz mkdir /usr/local/python3 cd Python-3.7.0 ./configure --prefix=/usr/local/python3 make && make install
设置默认python软连接 1 2 3 4 5 6 7 8 9 rm -rf /usr/bin/python rm -rf /usr/bin/pip rm -rf /usr/bin/python3-config ln -s /usr/local/python3/bin/python3.7 /usr/bin/python ln -s /usr/local/python3/bin/python3.7 /usr/bin/python3 ln -s /usr/local/python3/bin/pip3.7 /usr/bin/pip ln -s /usr/local/python3/bin/pip3.7 /usr/bin/pip3 ln -s /usr/local/python3/bin/python3.7-config /usr/bin/python3-config
测试python是否可用 1 2 3 python2 --version python3 --version python --version
yum改为python2 1 2 3 4 vi /usr/bin/yum 将第一行"#!/usr/bin/python" 改为 "#!/usr/bin/python2"。 # vi /usr/libexec/urlgrabber-ext-down 将第一行"#!/usr/bin/python" 改为 "#!/usr/bin/python2"即可。