def getLog(self, identifier):
        """
        Given an integer, return a LogReader for an old log file.
        """
        filename = "%s.%d" % (self.path, identifier)
        if not os.path.exists(filename):
            raise ValueError, "no such logfile exists"
        return LogReader(filename)
dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/python/logfile.py/LogFile.getLog/original