import wx, os, sys
errorframe = None
def watcherrors(function):
'''function decorator to display Exception information.'''
def substitute(*args, **kwargs):
try:
return function(*args, **kwargs)
except Exception:
error_type, error, traceback = sys.exc_info()
mb = wx.MessageDialog(errorframe,
'%s\n\nClick OK to see traceback' % error,
'Error in Run',
wx.OK | wx.CANCEL | wx.ICON_ERROR)
if wx.ID_OK == mb.ShowModal():
mb.Destroy()
from traceback import extract_tb
trace = ['%s line %s in %s:\n\t%s' % (
os.path.split(filename)[1], line, fun, text)
for filename, line, fun, text in
extract_tb(traceback)]
mb = wx.MessageDialog(errorframe,
'\n'.join(['%s\n' % error] + trace),
'Run Error w/ Traceback',
wx.OK | wx.ICON_ERROR)
result = mb.ShowModal()
mb.Destroy()
raise # Optional-- you may want to squech some errors here
try:
substitute.__doc__ = function.__doc__
except AttributeError:
pass
return substitute
# You can use it as follows to wrap functions and methods:
'''
class ....
@watcherrors
def something(somearg)
if somearg is not None:
raise ValueError(somearg)
...
'''
# Alternative: (watcherrors is defined almost as above)
def augmentedwatch(holder, framefieldname):
def watcherrors(function:
'...' # -- same as above
def substitute(*args, **kwargs):
try:
return function(*args, **kwargs)
except Exception:
error_type, error, traceback = sys.exc_info()
### new code:
errorframe = getattr(holder, framefieldname, None)
'...' # -- same as above
return substitute
return watcherrors
# You use this as follows to wrap functions and methods, where
# holder is an expression at "first import" time that will, at
# the time of one of the uncaught exceptions, have an attribute
# named 'frame':
'''
class ....
@augmentedwatch(holder, 'frame')
def something(somearg)
if somearg is not None:
raise ValueError(somearg)
...
'''
