Merge pull request #1169 from munahaf/Inappropriate_Logic-22reader_sc…

…hism_native.py12033886399640343059.diff

Remove a logical short circuit in a test expression

opendrift/readers/reader_schism_native.py

@@ -988,7 +988,7 @@ def interpolate(self, x, y, z=None, variables=None,
         # self._initialize_interpolator(x, y, z)
 
         env_dict = {}
-        if profiles is not []:
+        if not profiles:
             profiles_dict = {'z': self.z} # probably not valid...
         for varname, data in self.data_dict.items():
             nearest = False