Hiya, I'm looking for a way to know whether spawnProcess() did anything useful. That is, whether anything has actually been executed. In my specific case the executables are all persistent (pluggable modules, they stick around for a while) so based on the following snippet I thought I could check whether the resulting ProcessTransport has a pid:
"From before IProcessProtocol.makeConnection is called to before IProcessProtocol.processEnded is called, pid is an int giving the platform process ID of this process. pid is None at all other times."[1] However, a quick tour on the REPL shows otherwise (than I expected, not necessarily otherwise than what the docs say): >>> from twisted.internet import reactor >>> from twisted.internet import protocol >>> p = protocol.ProcessProtocol() >>> f = reactor.spawnProcess(p, "fail", ["fail"]) >>> f <Process pid=21053 status=-1> >>> f.pid 21053 I thought status might be of some relevance, but it didn't really change when I gave it a shot with actual executables. Something tells me I'm being massively stupid here, but I'm genuinely stuck. Can't really believe that there's no way to do this, though. Thanks. [1] http://twistedmatrix.com/documents/current/api/twisted.internet.interfaces.IProcessTransport.html#pid -- Dominic van Berkel "You don't have conversations with microprocessors. You tell them what to do, then helplessly watch the disaster when they take you literally." - David Brin, Startide Rising _______________________________________________ Twisted-Python mailing list Twisted-Python@twistedmatrix.com http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python
