1.升级python2.7(python2.7.3)
wget http://python.org/ftp/python/2.7.3/Python-2.7.3.tar.bz2
tar -jxvf Python-2.7.3.tar.bz2
cd Python-2.7.3
./configure
make all
make install
make clean
make distclean
mv /usr/bin/python /usr/bin/python2.6.6
ln -s /usr/local/bin/python2.7 /usr/bin/python
修改yum
vim /usr/bin/yum
头部:!/usr/bin/python2.6.6
2.安装jdk(version 1.8.0_161)
3.安装scala(Scala2.11.8)