Do you yearn for auto-completion and manual pages (automatically) within the AWS CLI tool? Look no more, as aws-shell is here to save (or shell?) the day.
$ pip install aws-shell
If you are not installing into a virtualenv you can run:
$ sudo pip install aws-shell
Once you've installed aws-shell, you can configure it with:
$ aws-shell aws> configure
Feel free to learn more about aws-shell here at it's GitHub repository page.