code: def is_archive(self):
          '''
              Determines if the attachment is an archive.
          '''
          try:
              if zipfile.is_zipfile(self.attachment.path) or tarfile.is_tarfile(self.attachment.path):
                  return True
          except Exception:
              pass
          return Falsf is_archive(self):
          '''
              Determines if the attachment is an archive.
          '''
          try:
              if zipfile.is_zipfile(self.attachment.path) or tarfile.is_tarfile(self.attachment.path):
                  return True
          except Exception:
              pass
          return False
docs: Determines if the attachment is an archive.