fix bug: pep8 compatibility

line too long

Author: HasanAhmadQ7

xarray/core/dataset.py

@@ -2327,13 +2327,14 @@ def interp_like(self, other, method='linear', assume_sorted=False,
     def _maybe_cast_floats(self, indexers):
         """ Cast float labels passed to sel() method to the float
         types of the corresponding coordinates"""
-        from .dataarray import  DataArray
+        from .dataarray import DataArray
         casted_indexers = indexers.copy()
         for k, v in indexers.items():
             coords_var = self.coords[k].values
             if isinstance(indexers[k], (slice, DataArray, Variable)):
                 pass
-            elif isinstance(coords_var, np.ndarray) and coords_var.dtype.kind == 'f':
+            elif isinstance(coords_var, np.ndarray) and
+                coords_var.dtype.kind == 'f':
                 casting_type = getattr(coords_var.dtype, "type")
                 casted_indexers[k] = casting_type(indexers[k])
         return casted_indexers