wget https://www.python.org/ftp/python/2.7.12/Python-2.7.13.tgz
tar zxvf Python-2.7.13.tgz
cd Python-2.7.13
./configure
make all
make install
make clean
make distclean

查看版本信息

/usr/local/bin/python2.7 -V

建立软连接，使系统默认的 python指向 python2.7

mv /usr/bin/python /usr/bin/python2.6.6
ln -s /usr/local/bin/python2.7 /usr/bin/python

重新检验Python 版本

python -V

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