sys.excepthook -vs- handled exceptions

问题

I noticed that exceptions that are handled do not result in a call to sys.excepthook... which makes sense in retrospect.

But, how do I log or otherwise customize the way that handled exceptions are dealt with? When this code executes...

try:
    1/0
except:
    pass

I would like to be able to log the fact that a ZeroDivisionError was handled.

Is there a way to do this?

回答1:

You can get the Exception and print info about it or log that with a logging call of your own:

try:
  1/0
except Exception, e:
  print("a {0} was not raised".format(e.__class__.__name__))
  # or logging.yourLogger(e.__class__.__name__)
  pass

Result:

a ZeroDivisionError was not raised

If you were looking for some kind of Global Exception Handling, that is probably not trivial or not possible without enclosing everything in try/except.

来源：https://stackoverflow.com/questions/49001647/sys-excepthook-vs-handled-exceptions