Print the python version being used in the CI build.

scripts/test-and-build.sh

@@ -6,6 +6,11 @@ cd `dirname $0`/..
 
 virtualenv -p python3 env
 . env/bin/activate
+
+# Print out the python versions for debugging purposes
+python --version
+pip --version
+
 pip install -r scripts/requirements.txt
 
 # do sanity checks on the examples and swagger