I would add a recommendation for pyenv as a way to manage multiple versions
of python on a  machine. Very helpful, particularly if you need to run
tests under multiple versions with something like tox.

https://github.com/pyenv/pyenv

—jay

On Wed, Mar 7, 2018 at 3:35 PM Ed Summers <[log in to unmask]> wrote:

> I agree. Third party support for Python3 is pretty good now. But if you
> have any dependencies you know you're going to need it's a good idea to
> check beforehand.
>
> There's also the six module if you want to be able to say you support 2
> and 3, and want a nice way of papering over the differences.
>
>     http://six.readthedocs.io/
>
> //Ed
>
> > On Mar 7, 2018, at 3:31 PM, Tod Olson <[log in to unmask]> wrote:
> >
> > I'd suggest Python 3.
> >
> > There are mechanisms for managing virtual environments for Python, like
> penv, which make it easy to install and switch between versions without
> confusing the system.
> >
> > -Tod
>