How to use the idna.core.InvalidCodepoint function in idna

def test_encode(self):

        self.assertEqual(idna.encode('xn--zckzah.xn--zckzah'), b'xn--zckzah.xn--zckzah')
        self.assertEqual(idna.encode(u'\u30c6\u30b9\u30c8.xn--zckzah'), b'xn--zckzah.xn--zckzah')
        self.assertEqual(idna.encode(u'\u30c6\u30b9\u30c8.\u30c6\u30b9\u30c8'), b'xn--zckzah.xn--zckzah')
        self.assertEqual(idna.encode('abc.abc'), b'abc.abc')
        self.assertEqual(idna.encode('xn--zckzah.abc'), b'xn--zckzah.abc')
        self.assertEqual(idna.encode(u'\u30c6\u30b9\u30c8.abc'), b'xn--zckzah.abc')
        self.assertEqual(idna.encode(u'\u0521\u0525\u0523-\u0523\u0523-----\u0521\u0523\u0523\u0523.aa'),
                         b'xn---------90gglbagaar.aa')
        self.assertRaises(idna.IDNAError, idna.encode,
                          u'\u0521\u0524\u0523-\u0523\u0523-----\u0521\u0523\u0523\u0523.aa', uts46=False)
        self.assertEqual(idna.encode('a'*63), b'a'*63)
        self.assertRaises(idna.IDNAError, idna.encode, 'a'*64)
        self.assertRaises(idna.core.InvalidCodepoint, idna.encode, '*')

def check_label(label):
    try: return _check_label_bak(label)
    except idna.core.InvalidCodepoint: pass
idna.core.check_label = check_label

def normalize(self):
        self.value = refang(self.value.lower())
        # Remove trailing dot if existing
        if self.value.endswith("."):
            self.value = self.value[:-1]
        try:
            self.idna = self.value
        except idna.core.InvalidCodepoint:
            pass
        except Exception as e:
            raise ObservableValidationError(e.with_traceback())

bisect.bisect_left(uts46data, (code_point, "Z")) - 1]
            status = uts46row[1]
            replacement = uts46row[2] if len(uts46row) == 3 else None
            if (status == "V" or
                    (status == "D" and not transitional) or
                    (status == "3" and not std3_rules and replacement is None)):
                output += char
            elif replacement is not None and (status == "M" or
                    (status == "3" and not std3_rules) or
                    (status == "D" and transitional)):
                output += replacement
            elif status != "I":
                raise IndexError()
        return unicodedata.normalize("NFC", output)
    except IndexError:
        raise InvalidCodepoint(
            "Codepoint {0} not allowed at position {1} in {2}".format(
            _unot(code_point), pos + 1, repr(domain)))

cp_value = ord(cp)
        if intranges_contain(cp_value, idnadata.codepoint_classes['PVALID']):
            continue
        elif intranges_contain(cp_value, idnadata.codepoint_classes['CONTEXTJ']):
            try:
                if not valid_contextj(label, pos):
                    raise InvalidCodepointContext('Joiner {0} not allowed at position {1} in {2}'.format(
                        _unot(cp_value), pos+1, repr(label)))
            except ValueError:
                raise IDNAError('Unknown codepoint adjacent to joiner {0} at position {1} in {2}'.format(
                    _unot(cp_value), pos+1, repr(label)))
        elif intranges_contain(cp_value, idnadata.codepoint_classes['CONTEXTO']):
            if not valid_contexto(label, pos):
                raise InvalidCodepointContext('Codepoint {0} not allowed at position {1} in {2}'.format(_unot(cp_value), pos+1, repr(label)))
        else:
            raise InvalidCodepoint('Codepoint {0} at position {1} of {2} not allowed'.format(_unot(cp_value), pos+1, repr(label)))

    check_bidi(label)

if value.authority_cert_issuer:
                        aki["use_authority_cert"] = True

                    return_extensions["authority_key_identifier"] = aki

                elif isinstance(value, x509.CRLDistributionPoints):
                    return_extensions["crl_distribution_points"] = {
                        "include_crl_dp": value
                    }

                # TODO: Not supporting custom OIDs yet. https://github.com/Netflix/lemur/issues/665
                else:
                    current_app.logger.warning(
                        "Custom OIDs not yet supported for clone operation."
                    )
        except InvalidCodepoint as e:
            sentry.captureException()
            current_app.logger.warning(
                "Unable to parse extensions due to underscore in dns name"
            )
        except ValueError as e:
            sentry.captureException()
            current_app.logger.warning("Unable to parse")
            current_app.logger.exception(e)

        return return_extensions