Only set view/data intervals if axis is set in AutoDateLocator

dstansby · dstansby · commit 764f8a3d1600 · 2017-10-29T16:07:18.000Z
diff --git a/lib/matplotlib/dates.py b/lib/matplotlib/dates.py
@@ -1183,8 +1183,9 @@ def get_locator(self, dmin, dmax):
 
         locator.set_axis(self.axis)
 
-        locator.set_view_interval(*self.axis.get_view_interval())
-        locator.set_data_interval(*self.axis.get_data_interval())
+        if self.axis is not None:
+            locator.set_view_interval(*self.axis.get_view_interval())
+            locator.set_data_interval(*self.axis.get_data_interval())
         return locator
 
 
