How to debug python del self.callbacks[s][cid] keyError when the error message does not indicate where in my code the error is
- by lkloh
In a python program I am writing, I get an error saying
Traceback (most recent call last):
File "/Applications/Canopy.app/appdata/canopy-1.4.0.1938.macosx- x86_64/Canopy.app/Contents/lib/python2.7/lib-tk/Tkinter.py", line 1470, in __call__
return self.func(*args)
File "/Users/lkloh/Library/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/matplotlib/backends/backend_tkagg.py", line 413, in button_release_event
FigureCanvasBase.button_release_event(self, x, y, num, guiEvent=event)
File "/Users/lkloh/Library/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/matplotlib/backend_bases.py", line 1808, in button_release_event
self.callbacks.process(s, event)
File "/Users/lkloh/Library/Enthought/Canopy_64bit/User/lib/python2.7/site-packages/matplotlib/cbook.py", line 525, in process
del self.callbacks[s][cid]
KeyError: 103
Do you have any idea how I can debug this/ what could be wrong? The error message does not point to anywhere in code I have personally written. I get the error message only after I close my GUI window, but I want to fix it even though it does not break the functionality of my code.
The error is part of a very big program I am writing, so I cannot post all my code, but below is code I think is relevant:
def save(self, event):
self.getSaveAxes()
self.save_connect()
def getSaveAxes(self):
saveFigure = figure(figsize=(8,1))
saveFigure.clf()
# size of save buttons
rect_saveHeaders = [0.04,0.2,0.2,0.6]
rect_saveHeadersFilterParams = [0.28,0.2,0.2,0.6]
rect_saveHeadersOverride = [0.52,0.2,0.2,0.6]
rect_saveQuit = [0.76,0.2,0.2,0.6]
#initalize axes
saveAxs = {}
saveAxs['saveHeaders'] = saveFigure.add_axes(rect_saveHeaders)
saveAxs['saveHeadersFilterParams'] = saveFigure.add_axes(rect_saveHeadersFilterParams)
saveAxs['saveHeadersOverride'] = saveFigure.add_axes(rect_saveHeadersOverride)
saveAxs['saveQuit'] = saveFigure.add_axes(rect_saveQuit)
self.saveAxs = saveAxs
self.save_connect()
self.saveFigure = saveFigure
show()
def save_connect(self):
#set buttons
self.bn_saveHeaders = Button(self.saveAxs['saveHeaders'], 'Save\nHeaders\nOnly')
self.bn_saveHeadersFilterParams = Button(self.saveAxs['saveHeadersFilterParams'], 'Save Headers &\n Filter Parameters')
self.bn_saveHeadersOverride = Button(self.saveAxs['saveHeadersOverride'], 'Save Headers &\nOverride Data')
self.bn_saveQuit = Button(self.saveAxs['saveQuit'], 'Quit')
#connect buttons to functions they trigger
self.cid_saveHeaders = self.bn_saveHeaders.on_clicked(self.save_headers)
self.cid_savedHeadersFilterParams = self.bn_saveHeadersFilterParams.on_clicked(self.save_headers_filterParams)
self.cid_saveHeadersOverride = self.bn_saveHeadersOverride.on_clicked(self.save_headers_override)
self.cid_saveQuit = self.bn_saveQuit.on_clicked(self.save_quit)
def save_quit(self, event):
self.save_disconnect()
close()
