CentOS下python2.6升级为python2.7
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CentOS python 升级; 这里是2.6升级为2.7
1.下载Pyhon:
wget https://www.python.org/ftp/python/2.7.12/Python-2.7.12.tgz
若需要安装wget,则参照以下内容进行搜索和安装:
yum search wgetyum install "wget合适版本"
2.解压:
tar -zxvf Python-2.7.12.tgz
3.切换目录:
cd Python-2.7.12
4.指定安装目录(可不指定):
./configure --prefix=/usr/local/python27
若需要安装gcc,可如下安装:
yum install gcc
5.编译、安装、清理:
makemake installmake clean
6.查看Python版本(此时仍为旧版本):
python -V
7.保存2.6版本:
mv /usr/bin/python /usr/bin/python2.6.6
8.创建链接来使系统默认python变为python2.7:
ln -s /usr/local/python27/bin/python2.7 /usr/bin/python
9.查看Python版本(此时为新版本):
python -V
10.修改yum配置(否则yum可能无法正常运行)
打开yum
vim /usr/bin/yum
将第一行的
#!/usr/bin/python
修改为系统原来的python版本
#!/usr/bin/python2.6
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