Count indexes using "for" in Python

I am trying to write a python script to verify whether or not a proper security constraint was applied in AWS. The script seems to be working, however, it is returning a duplicate output (code is attached)

Here is a sample log output when it is run in AWS Lambda:

START RequestId: 8edc3e6d-c727-11e7-ad8e-07aa7f7d4c10 Version: $LATEST
port-7dheonjnhtxci

Listing constraints.........
Checking for valid SG template constraint....
['port-7dheonjnhtxci'] Contains a valid SG template constraint....
Listing constraints.........
Checking for valid SG template constraint....
['port-7dheonjnhtxci'] Contains a valid SG template constraint....

END RequestId: 8edc3e6d-c727-11e7-ad8e-07aa7f7d4c10

As you can see, it is returning the same information twice.  I am relatively new to Python so I am sure it is just a simple oversight on my part. Any assistance would be greatly appreciated.
Code.txt