Issue in running user-data script AWS EC2

Is it possible to run python script through AWSCLI (user-data). I tried but it didn't run and i have following in my logs

boot.log:2015-08-07 10:08:30,660 - __init__.py[WARNING]: Unhandled non-multipart (text/x-not-multipart) userdata: './step-1
cloud-init.log:2015-08-07 10:08:30,660 - __init__.py[WARNING]: Unhandled non-multipart (text/x-not-multipart) userdata: './step-1'
cloud-init-output.log:2015-08-07 10:08:30,660 - __init__.py[WARNING]: Unhandled non-multipart (text/x-not-multipart) userdata: './step-1'

Note step-1 is my script which i am trying to pass as user-data . Also my script is present in same directory from where i am running command so it should pick