use clear var names

floenavi/__init__.py

@@ -686,11 +686,11 @@ class FloeNaviGrid(object):
         self.basestations = None
         self.basestation_dict = {}
 
-    def set_time_bounds(self, time_bounds, day_pad=True):
+    def set_time_bounds(self, dataset_time_bounds, day_pad=True):
         """
         Specify the time bounds of the data set, which will trigger parsing the appropriate
         basestation data.
-        :param time_bounds:
+        :param dataset_time_bounds:
         :param day_pad:
         :return:
         """
@@ -698,7 +698,7 @@ class FloeNaviGrid(object):
         # if day_pad is set to True: Extend the range of the floenavi grid
         # by two padding days (if the setup allows)
         # NOTE: This can improve the solution right at the start and end of an UTC day
-        time_bounds = list(time_bounds)
+        time_bounds = list(dataset_time_bounds)
         if day_pad:
             early_start_date = time_bounds[0] - timedelta(days=1)
             if early_start_date >= self.setup.time_bounds[0]: