def test_remote_redirect_stdout(self): 

       out = py.std.StringIO.StringIO() 

->     handle = self.gw._remote_redirect(stdout=out) 

       c = self.gw.remote_exec("print 42")

       c.waitclose(TESTTIMEOUT)

       handle.close() 

       s = out.getvalue() 

       assert s.strip() == "42" 

   def _remote_redirect(self, stdout=None, stderr=None): 

       """ return a handle representing a redirection of a remote 

               end's stdout to a local file object.  with handle.close() 

               the redirection will be reverted.   

           """ 

       clist = []

       for name, out in ('stdout', stdout), ('stderr', stderr): 

           if out: 

               outchannel = self.newchannel()

               outchannel.setcallback(getattr(out, 'write', out))

               channel = self.remote_exec(""" 

                       import sys

                       outchannel = channel.receive() 

                       outchannel.gateway._ThreadOut(sys, %r).setdefaultwriter(outchannel.send)

->                 """ % name) 

               channel.send(outchannel)

               clist.append(channel)

       for c in clist: 

           c.waitclose() 

       class Handle: 

           def close(_): 

               for name, out in ('stdout', stdout), ('stderr', stderr): 

                   if out: 

                       c = self.remote_exec("""

                               import sys

                               channel.gateway._ThreadOut(sys, %r).resetdefault()

                           """ % name) 

                       c.waitclose() 

       return Handle()