nose doesn’t discover tests on Solaris
Note: this is a technical post, to help poor souls that google this
When using nose on Solaris machines, simply running nosetests without specifying the file names will not work if you are the root user. To fix this, you must either not be root, or pass nose the argument --exe. That’s it.
Gory details: by default, nose ignores executable files. Each file it encounters it checks with os.access(test_file, os.X_OK) to see if it’s executable. Problem is that Solaris’ access function always returns success for root, regardless of actual file permissions. This is discouraged by POSIX, but known behavior.
I hope this saves someone the 3 hours it wasted for me

Kudos, it’s the first result for this problem’s search in Google