# install python3

sudo yum -y update

sudo yum -y install yum-utils

yum install -y zlib-devel bzip2-devel ncurses-devel

yum install libffi-devel

sqlite-devel wget

wget https://www.openssl.org/source/openssl-1.1.1b.tar.gz

tar xvf openssl-1.1.1b.tar.gz

cd openssl-1.1.1b

./config

make

make install

# openssl will be installed to /usr/local/ssl

# please add the path /usr/local/lib64 to /etc/ld.so.conf and run ldconfig

vi /etc/ld.so.conf

# add /usr/local/lib64

ldconfig

wget https://www.python.org/ftp/python/3.7.3/Python-3.7.3.tgz

tar xzf Python-3.7.3.tgz

cd Python-3.7.3

vi Modules/Setup.dist

# uncomment the following lines

# Socket module helper for SSL support; you must comment out the other

# socket line above, and possibly edit the SSL variable:

# :SSL=/usr/local/ssl

#  _ssl _ssl.c \

#     -DUSE_SSL -I$(SSL)/include -I$(SSL)/include/openssl \

#     -L$(SSL)/lib -lssl -lcrypto

./configure --enable-optimizations

make altinstall