Update Install Python Versions

Need to use Python3-OpenSSL instead of python-openssl and remove Python2
as it's not useful anymore.

install_python_versions.sh

@@ -1,7 +1,6 @@
 #!/usr/bin/env bash
 
 declare -a py_versions=( \
-      "2" \
       "3" \
       "3.5" \
       "3.6" \
@@ -32,7 +31,7 @@ if which apt > /dev/null; then
     tk-dev \
     libffi-dev \
     liblzma-dev \
-    python-openssl \
+    python3-openssl \
     git \
     graphviz \
     libxslt1-dev