[Baypiggies] How to tell if sys.excepthook has already been overridden?

Keith Dart keith at dartworks.biz
Tue Mar 24 11:22:44 CET 2009


Paul McNett wrote:
> Hi,
>
> Is there a general way to tell if sys.excepthook has been overridden 
> already or not? I want to override it in my library, but only if it 
> hasn't already been overridden by some other library or 
> end-application code.

The original (built-in) exception hook is available as 
"sys.__excepthook__. So you can test:

if sys.excepthook is sys.__excepthook__:
    print "original hook"
else:
   print "except hook overridden"




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