Todd Gamblin d6390c159f Fix issues related to the switchover to pytest. (#2685) ... - Remove stale reference to `import nose` from `bin/spack` script. - Add `py` to externals (missing dependency for `pytest`)		2016-12-29 11:59:45 -08:00
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spack	Fix issues related to the switchover to pytest. (#2685)	2016-12-29 11:59:45 -08:00