nosetest will run anything named test_ [#]
So ntest_ will be ignored.
ntest_ indicates that the test has been silenced while the transiation from old style ACLS to new style occurs.
I would have had to write a set of tests that dealt with old-style ACLS and new style sessions for one pull request only, and then introduce the new style ACLS and new style sessions just after.

While I can understand a different point of view a set of tests for one pull request while I had working ones in the next brnach seemed like more work than I wanted.


[#] That's a tuneable default but I don't think anyone ever bothers fiddling with it.