@@ -1290,7 +1290,7 @@ class LocationEvent(Event):
12901290 y data coordinate of the mouse.
12911291 """
12921292
1293- lastevent = None #the last eventthat was triggered before this one
1293+ lastevent = None #The last eventprocessed so far.
12941294
12951295def __init__ (self ,name ,canvas ,x ,y ,guiEvent = None ):
12961296"""
@@ -1307,7 +1307,6 @@ def __init__(self, name, canvas, x, y, guiEvent=None):
13071307
13081308if x is None or y is None :
13091309# cannot check if event was in axes if no (x, y) info
1310- self ._update_enter_leave ()
13111310return
13121311
13131312if self .canvas .mouse_grabber is None :
@@ -1325,33 +1324,21 @@ def __init__(self, name, canvas, x, y, guiEvent=None):
13251324self .xdata = xdata
13261325self .ydata = ydata
13271326
1328- self ._update_enter_leave ()
1329-
1330- def _update_enter_leave (self ):
1331- """Process the figure/axes enter leave events."""
1332- if LocationEvent .lastevent is not None :
1333- last = LocationEvent .lastevent
1334- if last .inaxes != self .inaxes :
1335- # process axes enter/leave events
1327+ def process (self ):
1328+ last = LocationEvent .lastevent
1329+ last_axes = last .inaxes if last is not None else None
1330+ if last_axes != self .inaxes :
1331+ if last_axes is not None :
13361332try :
1337- if last .inaxes is not None :
1338- last .canvas .callbacks .process ('axes_leave_event' ,last )
1333+ last .canvas .callbacks .process ("axes_leave_event" ,last )
13391334except Exception :
1335+ # The last canvas may already have been torn down.
13401336pass
1341- # See ticket 2901582.
1342- # I think this is a valid exception to the rule
1343- # against catching all exceptions; if anything goes
1344- # wrong, we simply want to move on and process the
1345- # current event.
1346- if self .inaxes is not None :
1347- self .canvas .callbacks .process ('axes_enter_event' ,self )
1348-
1349- else :
1350- # process a figure enter event
13511337if self .inaxes is not None :
1352- self .canvas .callbacks .process ('axes_enter_event' ,self )
1353-
1354- LocationEvent .lastevent = self
1338+ self .canvas .callbacks .process ("axes_enter_event" ,self )
1339+ LocationEvent .lastevent = (
1340+ None if self .name == "figure_leave_event" else self )
1341+ super ().process ()
13551342
13561343
13571344class MouseButton (IntEnum ):