centos-python3.5安装

python版本：Python-3.5.5.tgz

yum install -y gcc-c++

tar -xvf Python-3.5.5.tgz

cp Python-3.5.5 /usr/local

cd /usr/local/Python-3.5.5

./configure

make && make install

mv /usr/bin/python python_bk

ln -s /usr/local/bin/python3.5 /usr/bin/python

vi /usr/bin/yum

将第一行"#!/usr/bin/python" 改为 "#!/usr/bin/python2"即可

vi /usr/libexec/urlgrabber-ext-down

将第一行"#!/usr/bin/python" 改为 "#!/usr/bin/python2"即可