solved pep8 E711 issue
@@ -274,7 +274,7 @@ class TestHorizonsClass:
def test_uri(self):
target = jplhorizons.Horizons(id='3552', location='500',
epochs=2451544.5)
- assert target.uri == None
+ assert target.uri is None
target.ephemerides()
print(target.uri)
