Simple way of using Fabric or Boto to ssh into an AWS instance and run Shell commands

Hello I'm following This Tutorial on running shell commands with EC2 instances but I later tried This Method (the first answer).

It still doesn't work. First I got error unexpected keyword argument keypath

Then error 'Reservation' object has no attribute dns_name

So now I'm really confused. I had the instance spooled up and I used the proper instance id as well.

If there is an intuitive way to run a shell command on an AWS instance, I'd like to know. I already have my account and keys setup and I've run shell commands through the CLI but I want to automate the process. Fabric is proving a challenge to figure out.