I need this for#294.

It would be nice to have a test job that explicitly requires and uses six 1.4 , so that newer features are not inadvertently used without upgrading the requirement.

@jayvdb That sounds like a great idea, I'm not really sure how to go about doing that though.

You could add a job with

 env:   - USE_OPTIONAL=true   - USE_OPTIONAL=false+  - USE_SIX_14=true

And then inrequirements-install.sh look for that flag and force install 1.4 (and if anything upgrades it to a more recent version, fix it).

@jayvdb It appears the minimum required version is actually1.9. Good call on the testing thing.

I'll squash these commits and do a force push

In addition to the Travis errors described in#298, you are introducing many additional Travis jobs per build. This problem only requires one additional job.

Hey@jayvdb, any updates on this?

@amorde , I am not a committer here. I can only do code review, which I have done.
I am also waiting for this to be reviewed/merged so that I can complete#294. ;-)

@jayvdb gotcha, haha sorry for the mixup!

Thanks for the reviewing,@jayvdb! :)

Ultimately, we should almost certainly declare (and test) minimum required versions for all our dependencies.