Some tests are failing due to the missing pyephem package. They shouldn't really as it's listed only as an optional dependency: ===== test session starts ===== platform darwin -- Python 2.7.10 -- ...

If I'm correct, ephem and pyephem should be synonymous, i.e. the same installation. However "pip install pyephem" gives you 3.7.7.0 and a subsequent "pip install ephem" doesn't upgrade it, However on ...