830         (p2cread, p2cwrite,
839             if p2cwrite != -1:
840                 p2cwrite = msvcrt.open_osfhandle(p2cwrite.Detach(), 0)
949             if p2cwrite != -1:
950                 self.stdin = io.open(p2cwrite, 'wb', bufsize)
969                                 p2cread, p2cwrite,
1223                         p2cread, p2cwrite,  argument
1238                 if p2cread != -1 and p2cwrite != -1 and p2cread != devnull_fd:
1262             p2cread, p2cwrite = -1, -1
1273                 p2cread, p2cwrite = _winapi.CreatePipe(None, 0)
1274                 p2cread, p2cwrite = Handle(p2cread), Handle(p2cwrite)
1322             return (p2cread, p2cwrite,
1352                            p2cread, p2cwrite,  argument
1450                 self._close_pipe_fds(p2cread, p2cwrite,
1587             p2cread, p2cwrite = -1, -1
1594                 p2cread, p2cwrite = os.pipe()
1596                     fcntl.fcntl(p2cwrite, fcntl.F_SETPIPE_SZ, self.pipesize)
1638             return (p2cread, p2cwrite,
1644                          p2cread, p2cwrite,  argument
1662             for fd in (p2cwrite, c2pread, errread):
1678             self._close_pipe_fds(p2cread, p2cwrite,
1685                            p2cread, p2cwrite,  argument
1731                                   p2cread, p2cwrite,
1779                             p2cread, p2cwrite, c2pread, c2pwrite,
1790                 self._close_pipe_fds(p2cread, p2cwrite,