CentOS 7安装Python3.5,并与Python2.7兼容并存
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CentOS 7下安装Python3.5
CentOS7默认安装了python2.7.5,当需要使用python3的时候,可以手动下载Python源码后编译安装。
1.安装python3.5可能使用的依赖
1 yum install openssl-devel bzip2-devel expat-devel gdbm-devel readline-devel sqlite-devel
2.下载python
wget "https://www.python.org/ftp/python/3.5.0/Python-3.5.0.tgz"
3.解压下载好的压缩包
tar -zxvf Python-3.5.0.tgz
4.配置编译
1 sudo mkdir /usr/local/python32 sudo Python-3.5.0/configure --prefix=/usr/local/python33 sudo make4 sudo make install
5.备份旧版本python,链接新版本python
在/usr/bin中有python、python2、python2.7三个文件依次指向后者
1 sudo mv python python.bak,2 sudo ln -s /usr/local/python3/bin/python3 /usr/bin/python
6.修改yum配置文件
sudo vi /usr/bin/yum 将第一行指定的python版本改为python2.7(#!/usr/bin/python 改为 #!/usr/bin/python2.7)
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