Salvatore Di Fazio wrote: > Hi guys, > I've an application that writes a log file. > I need to write an application with python that will read this file. > > I would like wait until a new line will be write in the file. > > Something like the "watch cat Log" command on Linux os. > > How can I check the eof and restart the reading? > You didn't provide much info so here goes. If you use the logger module built into Python you can set up a logger that uses sockets. Have your program log to a socket and have the other program read from the socket. That way you will always have the latest log entries in the monitor program.
If you can't control the program that writes the log file, have your monitoring program look for change in the length of the logfile (you can use the os.stat module for this). When it changes, open the file, seek to the old length and read bytes up to the new length and close the logfile. What is read will be the new log entry (or entries). Reset the logfile length high water mark and loop. Hope information helps. -Larry Bates -- http://mail.python.org/mailman/listinfo/python-list
