Pmw error handling: an error in a callback called from an event binding. : Pmw Error Handler « GUI Pmw « Python






Pmw error handling: an error in a callback called from an event binding.

Pmw error handling: an error in a callback called from an event binding.
#Pmw copyright

#Copyright 1997-1999 Telstra Corporation Limited, Australia 
#Copyright 2000-2002 Really Good Software Pty Ltd, Australia

#Permission is hereby granted, free of charge, to any person obtaining a copy 
#of this software and associated documentation files (the "Software"), to deal 
#in the Software without restriction, including without limitation the rights 
#to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 
#copies of the Software, and to permit persons to whom the Software is furnished 
#to do so, subject to the following conditions:

#The above copyright notice and this permission notice shall be included in all 
#copies or substantial portions of the Software.

#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
#INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A 
#PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 
#HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 
#OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 
#SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 





title = 'Pmw error handling demonstration'

# Import Pmw from this directory tree.
import sys
sys.path[:0] = ['../../..']

import string
import Tkinter
import Pmw

class Demo:
    def __init__(self, parent):
  # Create two buttons to generate errors.
  w = Tkinter.Button(parent, text = 'Click here to generate\n' +
          'an error in a command callback.', command = self.execute)
  w.pack(padx = 8, pady = 8)

  w = Tkinter.Button(parent, text = 'Click here to generate\n' +
          'an error in a callback called\nfrom an event binding.')
  w.pack(padx = 8, pady = 8)
  w.bind('<ButtonRelease-1>', self.execute)
  w.bind('<Key-space>', self.execute)

    def execute(self, event = None):
  self._error()

    def _error(self):
  # Divide by zero
  1/0

######################################################################

# Create demo in root window for testing.
if __name__ == '__main__':
    root = Tkinter.Tk()
    Pmw.initialise(root)
    root.title(title)

    exitButton = Tkinter.Button(root, text = 'Exit', command = root.destroy)
    exitButton.pack(side = 'bottom')
    widget = Demo(root)
    root.mainloop()

           
       








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1.Pmw error handling: an error in a command callback.Pmw error handling: an error in a command callback.