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centOS6升级默认python2.6到python2.7 ​

CentOS6.x机器安装Python2.7.x

注意：centOS6从python2.6升级到python2.7之后，pip install fire无法正常工作，所以在centOS6升级python2.6到python2.7意义不大

升级步骤 ​

查看机器默认的Python版本 ​

bash
python -V
whereis python

安装gcc ​

bash
yum install gcc zlib zlib-devel openssl openssl-devel -y

编译安装python2.7 ​

bash
# 下载python2.7
wget https://bucketxy.oss-cn-hangzhou.aliyuncs.com/python/Python-2.7.15.tgz -O /tmp/Python-2.7.15.tgz

# 解压python2.7
cd /tmp && tar -zxvf Python-2.7.15.tgz

# configure python2.7
cd /tmp/Python-2.7.15 && ./configure --prefix=/usr/local

# 编译python2.7
cd /tmp/Python-2.7.15 && make

# 安装python2.7
cd /tmp/Python-2.7.15 && make install

修改python2.6为python2.7 ​

bash
# 备份原来python
mv /usr/bin/python /usr/bin/python.bak

# 建立软链接到python2.7
ln -s /usr/local/bin/python2.7 /usr/bin/python

# 查看当前python版本
python -V

python升级到2.7后，yum程序不能正常工作，编辑vi /usr/bin/yum修改#!/usr/bin/python为#!/usr/bin/python2.6 ​

bash
# 测试yum是否正常工作
yum list