(env) blurry:>$ pip freeze | grep dateparser
dateparser==1.1.1
(env) blurry:>$ pip freeze | grep regex
regex==2022.3.15

Python 3.8.10 (default, Nov 26 2021, 20:14:08) 
Type 'copyright', 'credits' or 'license' for more information
IPython 8.1.1 -- An enhanced Interactive Python. Type '?' for help.

In [1]: import dateparser

In [2]: dateparser.parse('01.JUN.1968')
---------------------------------------------------------------------------
error                                     Traceback (most recent call last)
Input In [2], in <cell line: 1>()
----> 1 dateparser.parse('01.JUN.1968')

File ~/lino/env/lib/python3.8/site-packages/dateparser/conf.py:92, in apply_settings.<locals>.wrapper(*args, **kwargs)
     89 if not isinstance(kwargs['settings'], Settings):
     90     raise TypeError("settings can only be either dict or instance of Settings class")
---> 92 return f(*args, **kwargs)

File ~/lino/env/lib/python3.8/site-packages/dateparser/__init__.py:61, in parse(date_string, date_formats, languages, locales, region, settings, detect_languages_function)
     57 if languages or locales or region or detect_languages_function or not settings._default:
     58     parser = DateDataParser(languages=languages, locales=locales,
     59                             region=region, settings=settings, detect_languages_function=detect_languages_function)
---> 61 data = parser.get_date_data(date_string, date_formats)
     63 if data:
     64     return data['date_obj']

File ~/lino/env/lib/python3.8/site-packages/dateparser/date.py:428, in DateDataParser.get_date_data(self, date_string, date_formats)
    425 date_string = sanitize_date(date_string)
    427 for locale in self._get_applicable_locales(date_string):
--> 428     parsed_date = _DateLocaleParser.parse(
    429         locale, date_string, date_formats, settings=self._settings)
    430     if parsed_date:
    431         parsed_date['locale'] = locale.shortname

File ~/lino/env/lib/python3.8/site-packages/dateparser/date.py:178, in _DateLocaleParser.parse(cls, locale, date_string, date_formats, settings)
    175 @classmethod
    176 def parse(cls, locale, date_string, date_formats=None, settings=None):
    177     instance = cls(locale, date_string, date_formats, settings)
--> 178     return instance._parse()

File ~/lino/env/lib/python3.8/site-packages/dateparser/date.py:182, in _DateLocaleParser._parse(self)
    180 def _parse(self):
    181     for parser_name in self._settings.PARSERS:
--> 182         date_data = self._parsers[parser_name]()
    183         if self._is_valid_date_data(date_data):
    184             return date_data

File ~/lino/env/lib/python3.8/site-packages/dateparser/date.py:196, in _DateLocaleParser._try_freshness_parser(self)
    194 def _try_freshness_parser(self):
    195     try:
--> 196         return freshness_date_parser.get_date_data(self._get_translated_date(), self._settings)
    197     except (OverflowError, ValueError):
    198         return None

File ~/lino/env/lib/python3.8/site-packages/dateparser/date.py:234, in _DateLocaleParser._get_translated_date(self)
    232 def _get_translated_date(self):
    233     if self._translated_date is None:
--> 234         self._translated_date = self.locale.translate(
    235             self.date_string, keep_formatting=False, settings=self._settings)
    236     return self._translated_date

File ~/lino/env/lib/python3.8/site-packages/dateparser/languages/locale.py:131, in Locale.translate(self, date_string, keep_formatting, settings)
    128 dictionary = self._get_dictionary(settings)
    129 date_string_tokens = dictionary.split(date_string, keep_formatting)
--> 131 relative_translations = self._get_relative_translations(settings=settings)
    133 for i, word in enumerate(date_string_tokens):
    134     word = word.lower()

File ~/lino/env/lib/python3.8/site-packages/dateparser/languages/locale.py:158, in Locale._get_relative_translations(self, settings)
    155 if settings.NORMALIZE:
    156     if self._normalized_relative_translations is None:
    157         self._normalized_relative_translations = (
--> 158             self._generate_relative_translations(normalize=True))
    159     return self._normalized_relative_translations
    160 else:

File ~/lino/env/lib/python3.8/site-packages/dateparser/languages/locale.py:172, in Locale._generate_relative_translations(self, normalize)
    170     value = list(map(normalize_unicode, value))
    171 pattern = '|'.join(sorted(value, key=len, reverse=True))
--> 172 pattern = DIGIT_GROUP_PATTERN.sub(r'?P<n>\d+', pattern)
    173 pattern = re.compile(r'^(?:{})$'.format(pattern), re.UNICODE | re.IGNORECASE)
    174 relative_dictionary[pattern] = key

File ~/lino/env/lib/python3.8/site-packages/regex/regex.py:700, in _compile_replacement_helper(pattern, template)
    695     break
    696 if ch == "\\":
    697     # '_compile_replacement' will return either an int group reference
    698     # or a string literal. It returns items (plural) in order to handle
    699     # a 2-character literal (an invalid escape sequence).
--> 700     is_group, items = _compile_replacement(source, pattern, is_unicode)
    701     if is_group:
    702         # It's a group, so first flush the literal.
    703         if literal:

File ~/lino/env/lib/python3.8/site-packages/regex/_regex_core.py:1736, in _compile_replacement(source, pattern, is_unicode)
   1733         if value is not None:
   1734             return False, [value]
-> 1736     raise error("bad escape \\%s" % ch, source.string, source.pos)
   1738 if isinstance(source.sep, bytes):
   1739     octal_mask = 0xFF

error: bad escape \d at position 7

In [3]: