wanglei-coder
diff --git a/‎src/wrf/projection.py
Lines changed: 2 additions & 5 deletions b/‎src/wrf/projection.py
Lines changed: 2 additions & 5 deletions
diff --git a/‎test/test_mercator.py b/‎test/test_mercator.py
@@ -76,12 +76,9 @@ def __init__(self, central_longitude=0.0,
                 else:
                     xlimits[0] = -xlimits[0]
 
-            self._xlimits = tuple(xlimits)
-            self._ylimits = tuple(limits[..., 1])
-
             # Compatibility with cartopy >= 0.17
-            self._x_limits = self._xlimits
-            self._y_limits = self._ylimits
+            self._x_limits = tuple(xlimits)
+            self._y_limits =  tuple(limits[..., 1])
 
             self._threshold = np.diff(self.x_limits)[0] / 720