On Sun, 2008-02-17 at 12:35 +0100, Duncan Webb wrote:
> kaa.notifier.async.AsyncException: Exception raised asynchronously;
> traceback follows:
> File "../base/build/lib.linux-i686-2.4/kaa/notifier/coroutine.py",
> line 203, in _step
> File "/usr/lib/python2.4/site-packages/freevo/tv/epg_types.py", line
> 121, in __cmp__
> return self.title != other.title or \
> AttributeError: 'object' object has no attribute 'title'
>
>
> Now I see where the error comes from but not why the __cmp__() is being
> called.
The coroutine wrapper must check the result of the coroutine to see if
it's kaa.NotFinished or not. If it is, it will schedule the coroutine
(or rather its underlying generator) to be called again. If not, it
finishes the InProgress it returned with the value.
Here is the relevant code from coroutine.py:
result = _process(self._coroutine, self._async)
if isinstance(result, InProgress):
self._async = result
if not result.is_finished():
# continue when InProgress is done
self._async = result
result.connect_both(self._continue, self._continue)
return False
elif result == NotFinished:
# schedule next interation with the timer
return True
else:
# coroutine is done
break
So the result your function is returning is being compared with
kaa.NotFinished, hence the call to __cmp__.
Jason.
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