In even seemingly-simple applications, it can be difficult to account for all possible error conditions that could occur in the application. This recipe shows how to handle unhandled exceptions, and how to display a notification to the user to let them know that an unexpected error has happened, before the application exits.
For this recipe, we will show how to create a simple exception hook to handle and inform the user of any unexpected errors that occur while the program is running:
import wx
import sys
import traceback
def ExceptionHook(exctype, value, trace):
"""Handler for all unhandled exceptions
@param exctype: Exception Type
@param value: Error Value
@param trace: Trace back info
"""
# Format the traceback
exc = traceback.format_exception(exctype, value, trace)
ftrace = "".join(exc)
app = wx.GetApp()
if app:
msg = "An unexpected error has occurred: %s" % ftrace
wx.MessageBox(msg, app.GetAppName...