Merge pull request matplotlib#2550 from joferkington/fix-wx-singleshot-timer

Using a single-shot timer with the Wx backend raises an AttributeError

Author: mdboom

lib/matplotlib/backends/backend_wx.py

@@ -203,7 +203,7 @@ def _timer_set_interval(self):
         self._timer_start()
 
     def _timer_set_single_shot(self):
-        self._timer.start()
+        self._timer.Start()
 
     def _on_timer(self, *args):
         TimerBase._on_timer(self)