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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _derive_log_path(self):
 """Guess logfile path produced by Mothur This method checks the working directory for log files generated by Mothur. It will raise an ApplicationError if no log file can be found. Mothur generates log files named in a nondeterministic way, using the current time. We return the log file with the most recent time, although this may lead to incorrect log file detection if you are running many instances of mothur simultaneously. """

        filenames = listdir(self.WorkingDir)
        lognames = [
            x for x in filenames if re.match(
                "^mothur\.\d+\.logfile$",
                x)]
        if not lognames:
            raise ApplicationError(
                'No log file detected in directory %s. Contents: \n\t%s' % (
                    input_dir, '\n\t'.join(possible_logfiles)))
        most_recent_logname = sorted(lognames, reverse=True)[0]
        return path.join(self.WorkingDir, most_recent_logname)