name : process_twisted.py """A process that reads from stdin and out using Twisted.""" # Twisted Preamble # This makes sure that users don't have to set up their environment # specially in order to run these programs from bin/. import os import sys pos = os.path.abspath(sys.argv[0]).find(os.sep + "Twisted") if pos != -1: sys.path.insert(0, os.path.abspath(sys.argv[0])[: pos + 8]) sys.path.insert(0, os.curdir) # end of preamble from zope.interface import implementer from twisted.internet import interfaces from twisted.python import log log.startLogging(sys.stderr) from twisted.internet import protocol, reactor, stdio @implementer(interfaces.IHalfCloseableProtocol) class Echo(protocol.Protocol): def connectionMade(self): print("connection made") def dataReceived(self, data): self.transport.write(data) def readConnectionLost(self): print("readConnectionLost") self.transport.loseConnection() def writeConnectionLost(self): print("writeConnectionLost") def connectionLost(self, reason): print("connectionLost", reason) reactor.stop() stdio.StandardIO(Echo()) reactor.run() # type: ignore[attr-defined]