Paul Sijben schrieb: > All, > > in a worker thread setup that communicates via queues is it possible to > catch exceptions raised by the worker executed, put them in an object > and send them over the queue to another thread where the exception is > raised in that scope? > > considering that an exception is an object I feel it ought to be > possible, however I do not see how to go about it. > > does anyone have a pointer towards the solution? > > Paul
You're right, even exceptions are objects in Python. For further studies, read http://docs.python.org/lib/module-exceptions.html You can catch an exception like this: try: worker.do_some_work_that_may_raise_an_exception() except Exception, e: # the first argument is the type of error you want to handle # it is Exception here, the baseclass of all computation exceptions # the second argument is the variable (name) where you want to save # the specific exception raised to # it's 'e' here, a common shortcut for exception exception_handler.handle(e) # notice that you can pass e around as you like For further information on exceptions and how to handle them, read chapter 8 of the tutorial, especially starting from 8.3: http://docs.python.org/tut/node10.html#SECTION0010300000000000000000 P.S. I don't know if what I told still applies to Python 3.0 -- a lot of changes are upcoming related to exception raising and handling. -- http://mail.python.org/mailman/listinfo/python-list
