code: def secgroup_delete(self, name):
          '''
          Delete a security group
          '''
          nt_ks = self.compute_conn
          for item in nt_ks.security_groups.list():
              if item.name == name:
                  nt_ks.security_groups.delete(item.id)
                  return {name: 'Deleted security group: {0}'.format(name)}
          return 'Security group not found: {0}'.format(namef secgroup_delete(self, name):
          '''
          Delete a security group
          '''
          nt_ks = self.compute_conn
          for item in nt_ks.security_groups.list():
              if item.name == name:
                  nt_ks.security_groups.delete(item.id)
                  return {name: 'Deleted security group: {0}'.format(name)}
          return 'Security group not found: {0}'.format(name)
docs: Delete a security group