[Twisted-Python] A kinder and more consistent defer.inlineCallbacks
terry at jon.es
Fri Nov 28 09:00:37 EST 2008
> Not quite:
> >>> def f():
> ... yield None
> >>> f(1, 2, 3)
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> TypeError: f() takes no arguments (3 given)
> And unfortunately, there is essentially no way to differentiate this case
> from a case where the call to `f´ succeeded but some code executed as a
> result of that raised a `TypeError´.
Right, not without looking at the text of the exception, which, apart from
being extremely would be unreliable. Too bad there's not a Python exception
for incorrect function/method arg passing.
> See also <http://twistedmatrix.com/trac/ticket/2501>.
Ha! There's pretty much the whole of this thread in there. I'll look more
carefully in trac next time. I did look at some point, and saw another
issue discussing what to do if a non-deferred is yielded.
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