Running Virtualenv with a custom distlib?

[haraldnordgren at gmail.com]

I want to do some development on `distlib`, and in the process run the code via `virtualenv` which has distlib as a dependency.

That is, not run the process inside a virtualenv, but run virtualenv's code using a custom dependency. What are the steps I need to go through to achieve this?

It seems to me that normal package management (`pip`) is not possible here.