I've just released foolscap-0.12.0 to PyPI, which should fix this. We've deprecated a function that talks to the root nameservers, and this release removes the test that used to exercise that function. I think that was the only place which should be doing off-box network access (there's plenty of localhost access, of course, this being a networking package).
I hope that will resolve the issue. Please let me know if there's anything I can do to help get this packaged and (most importantly) the auto-removal of Foolscap and Tahoe-LAFS resolved. thanks! -Brian
