[Twisted-Python] Is this possible to catch this error? (returned by protocols/memcached.py)
exarkun at twistedmatrix.com
exarkun at twistedmatrix.com
Fri Jun 3 09:32:37 MDT 2011
On 02:04 pm, bra at fsn.hu wrote:
>Hi,
>
>On 06/03/11 15:57, exarkun at twistedmatrix.com wrote:
>>
>>>As you can see, the connection is timed out, and
>>>protocols/memcached.py
>>>lost its connection. But how could I catch this around the "mc.get"
>>>call?
>>>I guess this error should raise an exception, so enclosing mc.get
>>>into a
>>>try-except would make possible to catch this. But currently this is
>>>not
>>>the case?
>>
>>What do you think it is not the case? That is how inlineCallbacks
>>makes Failures available to you.
>Because if I wrap mc.get into a try-except clause, it's not triggered.
>I
>guess if it would, the above error would show exact line numbers too.
I can't reproduce this. I changed the code to:
@defer.inlineCallbacks
def query():
try:
res = yield mc.get('test')
except Exception, e:
print "get failed:", e
else:
print "XXX",res
When I run this against the nc server, the "get failed:" print happens.
Jean-Paul
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