dateparser: use PEP 604 (#5977)

Co-authored-by: hauntsaninja <>

stubs/dateparser/dateparser/languages/loader.pyi

@@ -1,5 +1,5 @@
 from collections import OrderedDict
-from typing import Any, Iterator, List, Optional, Union
+from typing import Any, Iterator, List
 
 from .locale import Locale
 
@@ -8,16 +8,16 @@ LOCALE_SPLIT_PATTERN: Any
 class LocaleDataLoader:
     def get_locale_map(
         self,
-        languages: Optional[List[str]] = ...,
-        locales: Optional[List[str]] = ...,
+        languages: List[str] | None = ...,
+        locales: List[str] | None = ...,
         region: str | None = ...,
         use_given_order: bool = ...,
         allow_conflicting_locales: bool = ...,
-    ) -> OrderedDict[str, Union[List[Any], str, int]]: ...
+    ) -> OrderedDict[str, List[Any] | str | int]: ...
     def get_locales(
         self,
-        languages: Optional[List[str]] = ...,
-        locales: Optional[List[str]] = ...,
+        languages: List[str] | None = ...,
+        locales: List[str] | None = ...,
         region: str | None = ...,
         use_given_order: bool = ...,
         allow_conflicting_locales: bool = ...,

stubs/dateparser/dateparser/search/__init__.pyi

@@ -1,6 +1,6 @@
 import sys
 from datetime import datetime
-from typing import Any, List, Mapping, Optional, Set, Tuple, Union, overload
+from typing import Any, List, Mapping, Set, Tuple, overload
 
 if sys.version_info >= (3, 8):
     from typing import Literal
@@ -10,14 +10,14 @@ else:
 @overload
 def search_dates(
     text: str,
-    languages: Optional[Union[List[str], Tuple[str], Set[str]]],
-    settings: Optional[Mapping[Any, Any]],
+    languages: List[str] | Tuple[str] | Set[str] | None,
+    settings: Mapping[Any, Any] | None,
     add_detected_language: Literal[True],
 ) -> List[Tuple[str, datetime, str]]: ...
 @overload
 def search_dates(
     text: str,
-    languages: Optional[Union[List[str], Tuple[str], Set[str]]] = ...,
-    settings: Optional[Mapping[Any, Any]] = ...,
+    languages: List[str] | Tuple[str] | Set[str] | None = ...,
+    settings: Mapping[Any, Any] | None = ...,
     add_detected_language: Literal[False] = ...,
 ) -> List[Tuple[str, datetime]]: ...

stubs/dateparser/dateparser/utils/__init__.pyi

@@ -1,11 +1,11 @@
 from collections import OrderedDict
-from typing import Any, List, Mapping, Union
+from typing import Any, List, Mapping
 
 def strip_braces(date_string: str) -> str: ...
 def normalize_unicode(string: str, form: str = ...) -> str: ...
 def combine_dicts(
     primary_dict: Mapping[Any, Any], supplementary_dict: Mapping[Any, Any]
-) -> OrderedDict[str, Union[str, List[Any]]]: ...
+) -> OrderedDict[str, str | List[Any]]: ...
 def find_date_separator(format) -> Any: ...
 def localize_timezone(date_time, tz_string): ...
 def apply_tzdatabase_timezone(date_time, pytz_string): ...

tests/check_pep_604.py

@@ -59,8 +59,6 @@ def main() -> None:
             continue
         if "stubs/protobuf/google/protobuf" in str(path):  # TODO: fix protobuf stubs
             continue
-        if "stubs/dateparser/" in str(path):  # TODO: fix dateparser
-            continue
 
         with open(path) as f:
             tree = ast.parse(f.read())