yum install bash make sed runtest
yum install grep gcc tcl-devel
yum install autoconf automake autopoint python sphinx

python3

yum install gcc openssl-devel bzip2-devel libffi-devel zlib-devel
wget https://www.python.org/ftp/python/3.9.6/Python-3.9.6.tgz
mkdir /nfsshare/main/build/python39
sudo ./configure –enable-optimizations –prefix=/nfsshare/main/build/python39
sudo make altinstall