It's definitely possible, here's a small example. There are probably
better ways to do it, but I'll let you figure that out ;)
class ErrorHandler:
def __init__(self,method):
self.method = method
self.errorHook = None
def onError(self,hook):
self.errorHook = hook
def __call__(self, *args, **kwargs):
if self.errorHook:
try:
self.method(*args,**kwargs)
except Exception, e:
self.errorHook(e)
else:
self.method(*args,**kwargs)
class MyClass:
def __init__(self):
self.load = ErrorHandler(self.load)
def load(self,filename):
return self.x
def IOErrorHook(e):
print 'Caught error:',e
c = MyClass()
c.load.onError(IOErrorHook)
c.load('filename')
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