Some of the frontend tests seem to depend on tornado. We should use the existing framework to check if it's installed and skip the tests if not.
Totally agreed. Marking as critical for 0.12, b/c the test suite would otherwise bomb for lots of people.
I am a bit surprised by this as none of the tests should import tornado. But, will nose import all of the modules in the frontend.html.notebook package looking for doctests?
closed by PR #748