Update Python version in setup scripts

scripts/setup-web2py-centos7.sh

@@ -1,6 +1,6 @@
 echo "This script will:
 1) Install modules needed to run web2py on Fedora and CentOS/RHEL
-2) Install Python 2.6 to /opt and recompile wsgi if not provided
+2) Install Python 3.7 to /opt and recompile wsgi if not provided
 2) Install web2py in /opt/web-apps/
 3) Configure SELinux and iptables
 5) Create a self signed ssl certificate
@@ -56,7 +56,7 @@ echo
 yum update
 
 # Install required packages
-yum install httpd mod_ssl mod_wsgi wget python unzip
+yum install httpd mod_ssl mod_wsgi wget python3 unzip
 
 ###
 ### Phase 2 - Install web2py