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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 set_cons3rt_role_name(self):
 """Set the cons3rt_role_name member for this system :return: None :raises: DeploymentError """

        log = logging.getLogger(self.cls_logger + '.set_cons3rt_role_name')
        try:
            self.cons3rt_role_name = os.environ['CONS3RT_ROLE_NAME']
        except KeyError:
            log.warn('CONS3RT_ROLE_NAME is not set, attempting to determine it from deployment properties...')

            if platform.system() == 'Linux':
                log.info('Attempting to determine CONS3RT_ROLE_NAME on Linux...')
                try:
                    self.determine_cons3rt_role_name_linux()
                except DeploymentError:
                    raise
            else:
                log.warn('Unable to determine CONS3RT_ROLE_NAME on this System')

        else:
            log.info('Found environment variable CONS3RT_ROLE_NAME: {r}'.format(r=self.cons3rt_role_name))
            return