1)下载安装python3.7.2

1:yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc make 
2:yum -y install libffi-devel
3:mkdir -p /opt/software
4:cd /opt/software 5:wget https://www.python.org/ftp/python/3.7.2/python-3.7.2.tgz 6:tar -xvf Python-3.7.2.tgz 7:mkdir -p /usr/local/python3 8:cd Python-3.7.2/ 9:./configure prefix=/usr/local/python3 10:make 11:make install

2)将python配置修改为python3的

1:mv /usr/bin/python /usr/bin/python.bak
2:ln -s /usr/local/python3/bin/python3.7 /usr/bin/python
3:python -V

3)相关问题

1:修改配置后yum源不能用的问题

vim /usr/bin/yum
将 #! /usr/bin/python 修改成 #! /usr/bin/python2

vim /usr/libexec/urlgrabber-ext-down
将 #! /usr/bin/python 修改成 #! /usr/bin/python2
2:如果make和make install过程报错,都是因为依赖不全,去第一部分下载依赖,就好了

 

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