PEP suggestion: Uniform way to indicate Python language version

[Chris Angelico]

On Mon, Aug 22, 2016 at 1:37 PM, rocky <rocky at gnu.org> wrote:
> Sorry should have been:
>
>  assert sys.version_info >= (3,0)

The next question is: How common is code like this? I don't put
version checks in any of my modules. Adding magic comments would be of
value only if this sort of thing is common enough to need its own
syntax.

ChrisA