I'm trying to simply imitate what "tail -f" does, i.e. read a file, wait until it's appended to and process the new data, but apparently I'm missing something.
The code is: 54 f = file(filename, "r", 1) 55 f.seek(-1000, os.SEEK_END) 56 ff = fcntl.fcntl(f.fileno(), fcntl.F_GETFL) 57 fcntl.fcntl(f.fileno(), fcntl.F_SETFL, ff | os.O_NONBLOCK) 58 59 pe = select.poll() 60 pe.register(f) 61 while True: 62 print repr(f.read()) 63 print pe.poll(1000) The problem is: poll() always returns that the fd is ready (without waiting), but read() always returns an empty string. Actually, it doesn't matter if I turn O_NDELAY on or off. select() does the same. Any advice? -- http://mail.python.org/mailman/listinfo/python-list