[Twisted-Python] Problem with process ?
Philippe Bouige
pbouige at pasteur.fr
Tue Sep 14 05:58:37 MDT 2004
Hello,
I have problem with getProcessOutput, I attempt this code (*)
and i change the line :
return utils.getProcessOutput("ls",["-l", "-a"])
by :
return utils.getProcessOutput("ls",["-l, "."])
it's Ok for this...
But when i change
by :
return utils.getProcessOutput("ls",["-l *"])
or :
return utils.getProcessOutput("ls",["-l -a"])
or :
return utils.getProcessOutput("ls",["-l ."])
and i have allways this error, but I don't undestand ??
*--- Failure #5 ---
--- <exception caught here> ---
*--- End of Failure #5 ---
Traceback (most recent call last):
File
"/home/foo/twisted/internet/default.py", line 526, in doSelect
....etc..
"/home/foo/twisted/internet/utils.py", line 44, in errReceived
self.deferred.errback(failure.Failure(IOError("got stderr")))
exceptions.AttributeError: 'NoneType' object has no attribute
'errback'
*--- Failure #9 ---
--- <exception caught here> ---
*--- End of Failure #9 ---
Traceback (most recent call last):
File
"/home/foo/twisted/internet/default.py", line 526, in doSelect
_logrun(selectable, _drdw, selectable, method, dict)
......etc..
File
"/home/foo/twisted/internet/utils.py", line 44, in errReceived
self.deferred.errback(failure.Failure(IOError("got stderr")))
exceptions.AttributeError: 'NoneType' object has no attribute
'errback'
*--- Failure #13 ---
--- <exception caught here> ---
*--- End of Failure #13 ---
Thank you very much for your help.
(*)--------------------------------------------------------
from twisted.internet import protocol, reactor, defer, utils
from twisted.protocols import basic
class FingerProtocol(basic.LineReceiver):
def lineReceived(self, user):
self.factory.getUser(user
).addCallback(lambda m:
(self.transport.write(m+"\r\n\n"))
).addErrback(lambda x : x.printDetailedTraceback())
class FingerFactory(protocol.ServerFactory):
protocol = FingerProtocol
def getUser(self, user):
return utils.getProcessOutput("ls",["-l -a"])
reactor.listenTCP(1079, FingerFactory())
reactor.run()
--
Cordialement Philippe
More information about the Twisted-Python
mailing list