code: def read_enabled(self):
          
          for line in self.conf.splitlines():
              line = line.lstrip()
              if self.tag in line:
                  self.tag_line = True
              if (line and self.tag_line and not line.startswith("#") and
                      self.tag not in line):
                  self.enabled.append(line)
          self.tag_line = False
docs: Read enable repositories