dnf install python2

#dnf能安装成功请不要再安装下面的命令

cd /root
yum groupinstall -y "Development tools" 
yum install -y zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel expat-devel gdbm-devel readline-devel 
yum -y install python-devel openssl openssl-devel gcc sqlite sqlite-devel mysql-devel libxml2-devel libxslt-devel


wget https://www.python.org/ftp/python/2.7.17/Python-2.7.17.tgz
tar zxf Python-2.7.17.tgz
cd Python-2.7.17
./configure --prefix=/usr --with-threads --enable-optimizations --enable-shared
sudo make 
sudo make test
sudo make altinstall 

#cd /usr/local/lib && ln -n  /usr/lib/libpython2.7.so.1.0 libpython2.7.so.1.0 && /sbin/ldconfig -v
#  echo "/usr/local/python2.7/lib" >> /etc/ld.so.conf
ldconfig

whereis python2
#  ln  -s  /usr/bin/python2  /bin/python



####find / -name 'libgd.so.2'
####ldd /www/server/nginx/sbin/nginx
####cp /usr/lib64/libgd.so /usr/lib64/libgd.so.2
####yum search gd 
####yum install gd
####yum install python2-devel.x86_64
####pip install psutil requests flask


#########install python37
yum -y groupinstall "Development tools"
yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel
yum install libffi-devel -y

wget https://www.python.org/ftp/python/3.7.0/Python-3.7.0.tar.xz
tar -xvJf  Python-3.7.0.tar.xz

mkdir /usr/local/python3 #创建编译安装目录
cd Python-3.7.0
./configure --prefix=/usr
make && make install

ln -s /usr/local/python3/bin/python3 /usr/local/bin/python3
ln -s /usr/local/python3/bin/pip3 /usr/local/bin/pip3

python3 -V
pip3 -V