Merge pull request matplotlib#29680 from sandyowlet/main

DOC: fix the bug of examples\event_handling

Author: tacaswell

galleries/examples/event_handling/data_browser.py

@@ -82,7 +82,7 @@ def update(self):
                  transform=ax2.transAxes, va='top')
         ax2.set_ylim(-0.5, 1.5)
         self.selected.set_visible(True)
-        self.selected.set_data(xs[dataind], ys[dataind])
+        self.selected.set_data([xs[dataind]], [ys[dataind]])
 
         self.text.set_text('selected: %d' % dataind)
         fig.canvas.draw()