823         (p2cread, p2cwrite,
832             if p2cwrite != -1:
833                 p2cwrite = msvcrt.open_osfhandle(p2cwrite.Detach(), 0)
930             if p2cwrite != -1:
931                 self.stdin = io.open(p2cwrite, 'wb', bufsize)
950                                 p2cread, p2cwrite,
1204                         p2cread, p2cwrite,  argument
1219                 if p2cread != -1 and p2cwrite != -1 and p2cread != devnull_fd:
1243             p2cread, p2cwrite = -1, -1
1254                 p2cread, p2cwrite = _winapi.CreatePipe(None, 0)
1255                 p2cread, p2cwrite = Handle(p2cread), Handle(p2cwrite)
1303             return (p2cread, p2cwrite,
1333                            p2cread, p2cwrite,  argument
1431                 self._close_pipe_fds(p2cread, p2cwrite,
1570             p2cread, p2cwrite = -1, -1
1577                 p2cread, p2cwrite = os.pipe()
1615             return (p2cread, p2cwrite,
1621                          p2cread, p2cwrite,  argument
1639             for fd in (p2cwrite, c2pread, errread):
1655             self._close_pipe_fds(p2cread, p2cwrite,
1662                            p2cread, p2cwrite,  argument
1708                                   p2cread, p2cwrite,
1756                             p2cread, p2cwrite, c2pread, c2pwrite,
1767                 self._close_pipe_fds(p2cread, p2cwrite,