matplotlib
diff --git a/‎lib/matplotlib/blocking_input.py
Lines changed: 41 additions & 5 deletions b/‎lib/matplotlib/blocking_input.py
Lines changed: 41 additions & 5 deletions
@@ -155,14 +155,26 @@ def key_event(self):
             self.mouse_event_add(event)
 
     def mouse_event_add(self, event):
-        """Process an button-1 event (add a click if inside axes)."""
+        """
+        Process an button-1 event (add a click if inside axes).
+
+        Parameters
+        ----------
+        event : ~.backend_bases.MouseEvent
+        """
         if event.inaxes:
             self.add_click(event)
         else:  # If not a valid click, remove from event list.
             BlockingInput.pop(self)
 
     def mouse_event_stop(self, event):
-        """Process an button-2 event (end blocking input)."""
+        """
+        Process an button-2 event (end blocking input).
+
+        Parameters
+        ----------
+        event : ~.backend_bases.MouseEvent
+        """
         # Remove last event just for cleanliness.
         BlockingInput.pop(self)
         # This will exit even if not in infinite mode.  This is consistent with
@@ -171,15 +183,27 @@ def mouse_event_stop(self, event):
         self.fig.canvas.stop_event_loop()
 
     def mouse_event_pop(self, event):
-        """Process an button-3 event (remove the last click)."""
+        """
+        Process an button-3 event (remove the last click).
+
+        Parameters
+        ----------
+        event : ~.backend_bases.MouseEvent
+        """
         # Remove this last event.
         BlockingInput.pop(self)
         # Now remove any existing clicks if possible.
         if self.events:
             self.pop(event)
 
     def add_click(self, event):
-        """Add the coordinates of an event to the list of clicks."""
+        """
+        Add the coordinates of an event to the list of clicks.
+
+        Parameters
+        ----------
+        event : ~.backend_bases.MouseEvent
+        """
         self.clicks.append((event.xdata, event.ydata))
         _log.info("input %i: %f, %f",
                   len(self.clicks), event.xdata, event.ydata)
@@ -192,7 +216,13 @@ def add_click(self, event):
             self.fig.canvas.draw()
 
     def pop_click(self, event, index=-1):
-        """Remove a click (by default, the last) from the list of clicks."""
+        """
+        Remove a click (by default, the last) from the list of clicks.
+
+        Parameters
+        ----------
+        event : ~.backend_bases.MouseEvent
+        """
         self.clicks.pop(index)
         if self.show_clicks:
             self.marks.pop(index).remove()
@@ -208,6 +238,12 @@ def pop(self, event, index=-1):
         BlockingInput.pop(self, index)
 
     def cleanup(self, event=None):
+        """
+        Parameters
+        ----------
+        event : ~.backend_bases.MouseEvent
+            Not used
+        """
         # Clean the figure.
         if self.show_clicks:
             for mark in self.marks: