reuse_existing should check the interpreter

[dhermes]

If reuse_existing=True when creating a Virtualenv, but the interpreter has changed, then the environment should still be re-created.

[theacodes]

Interesting, wouldn't that change the name of the virtualenv folder?

[dhermes]

@theacodes I'm not 100% sure, but I think "not always" is the answer.

[theacodes]

Cool, makes sense for us to check it then.

[theacodes]

I'm not 100% how to do this yet. We don't ever know the full path to the interpreter, we just figure out enough info to get virtualenv to figure it out. I could try invoking the interpreter.

[dhermes]

Yes. You can get the actual interpreter via:

original = session.run("python", "-c", "import sys; print(sys.real_prefix)", silent=True)

[theacodes]

Invoking the interpreter doesn't quite get me any closer. We could invoke our resolved interpreter and invoke the one in the virtualenv and compare. Still not 100% sure on that.

[dhermes]

Yes that's what you want to do.

[theacodes]

From #231, we should also test the type of environment.