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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 pid(self):
 """Stop managing the current pid."""

        try:

            os.remove(self.pidfile)

        except IOError:

            if not os.path.isfile(self.pidfile):

                return None

            LOG.exception("Failed to clear pidfile {0}).".format(self.pidfile))
            sys.exit(exit.PIDFILE_INACCESSIBLE)