python 2 compatibility

[pgajdos]

I would like to clarify whether you still want to support python 2. setup.py claims the module is python 3 only, however the code still depends on six.

[nateprewitt]

Hi @pgajdos, the short answer is we do not support Python 2 as stated in the README and trove classifiers.

botocore doesn't depended on six as an external dependency either. We vendor a copy which we intend to keep in place for the time being. This is because we've exposed some of it through our compat module which users have used in their own projects. Removing it now is likely to cause unnecessary breakages.

[pgajdos]

Thank you for clarification.