After successfully deploying a test app using the steps outlined here: http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/create_deploy_Python_flask.html
I tried
As of awsebcli 3.0, you can actually edit your configuration settings to represent your WSGI path via eb config. The config command will then pull (and open it in your default command line text editor, i.e nano) an editable config based on your current configuration settings. You'll then search for WSGI and update it's path that way. After saving the file and exiting, your WSGI path will be updated automatically.