Add a locator to AutoDateFormatters example code

mineo · mineo · commit 0104905110cb · 2016-03-26T15:35:50.000+01:00
AutoDateFormatter.__init__ always needs a locator, so add one to the
example in the documentation.
diff --git a/lib/matplotlib/dates.py b/lib/matplotlib/dates.py
@@ -642,7 +642,8 @@ class AutoDateFormatter(ticker.Formatter):
     dictionary by doing::
 
 
-    >>> formatter = AutoDateFormatter()
+    >>> locator = AutoDateLocator()
+    >>> formatter = AutoDateFormatter(locator)
     >>> formatter.scaled[1/(24.*60.)] = '%M:%S' # only show min and sec
 
     A custom :class:`~matplotlib.ticker.FuncFormatter` can also be used.
