Don't perform retey in convert_units

sasoripathos · sasoripathos · commit 45da1c557300 · 2019-04-24T15:27:56.000-04:00
diff --git a/lib/matplotlib/axis.py b/lib/matplotlib/axis.py
@@ -1555,12 +1555,9 @@ def convert_units(self, x):
             # DecimalConverter may raise error, so check here to walk around.
             if munits.ConversionInterface.is_numlike(x):
                 return x
-            # Try convert again
-            try:
-                ret = self.converter.convert(x, self.units, self)
-            except Exception as e2:
-                raise munits.ConversionError('Failed to convert value(s) to '
-                                         f'axis units: {x!r}') from e2
+            # Otherwise, the conversion fails
+            raise munits.ConversionError('Failed to convert value(s) to '
+                                         f'axis units: {x!r}') from e
         return ret
 
     def set_units(self, u):
