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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 deactivate(self):
 """ deactivate the environment """

        try:
            self.phase = PHASE.DEACTIVATE
            self.logger.info("Deactivating environment %s..." % self.namespace)
            self.directory.rewrite_config = False
            self.instantiate_features()
            self._specialize()
            for feature in self.features.run_order:
                self.logger.info("Deactivating %s..." % feature[0])
                self.run_action(feature, 'deactivate')
            self.clear_all()
            self._finalize()
        except Exception:
            self.logger.debug("", exc_info=sys.exc_info())
            et, ei, tb = sys.exc_info()
            reraise(et, ei, tb)