drop python 2 support

[pgajdos]

Could you please eventually consider to drop python 2 support and remove six usage?

[pgajdos]

https://trello.com/c/MO53MocR/143-remove-python3-six

[youknowone]

Hi, could you tell me more about your motivation to remove six?

As I understand, it is a very tiny library and practically used from everywhere.
Since I was out of Python development trend for a long time, I'd like to listen if things are changed in Python community. (not specifically in Suse community)

On the other hand, yes, supporting Python 2 is not the best things these days.
I'd like to eventually remove it and release 1.0 of this library late this year.

[pgajdos]

Yeah, thanks for consideration.

[pgajdos]

You can find reasoning for example here:
vmware/pyvmomi#1082

[youknowone]

six is only a polyfilm that enable to write Python2.x compatible code, it doesn't have any other purpose

I agree here. I dont think removing six gives much benefit.