Big diff: Use new "|" union syntax (#5872)

stubs/polib/polib.pyi

@@ -1,5 +1,5 @@
 import textwrap
-from typing import IO, Any, Callable, Dict, Generic, List, Optional, Text, Tuple, Type, TypeVar, Union, overload
+from typing import IO, Any, Callable, Dict, Generic, List, Text, Tuple, Type, TypeVar, overload
 from typing_extensions import SupportsIndex
 
 _TB = TypeVar("_TB", bound="_BaseEntry")
@@ -19,7 +19,7 @@ def pofile(pofile: Text, **kwargs: Any) -> POFile: ...
 def mofile(mofile: Text, *, klass: Type[_TM], **kwargs: Any) -> _TM: ...
 @overload
 def mofile(mofile: Text, **kwargs: Any) -> MOFile: ...
-def detect_encoding(file: Union[bytes, Text], binary_mode: bool = ...) -> str: ...
+def detect_encoding(file: bytes | Text, binary_mode: bool = ...) -> str: ...
 def escape(st: Text) -> Text: ...
 def unescape(st: Text) -> Text: ...
 
@@ -38,8 +38,8 @@ class _BaseFile(List[_TB]):
     def append(self, entry: _TB) -> None: ...
     def insert(self, index: SupportsIndex, entry: _TB) -> None: ...
     def metadata_as_entry(self) -> POEntry: ...
-    def save(self, fpath: Optional[Text] = ..., repr_method: str = ...) -> None: ...
-    def find(self, st: Text, by: str = ..., include_obsolete_entries: bool = ..., msgctxt: bool = ...) -> Optional[_TB]: ...
+    def save(self, fpath: Text | None = ..., repr_method: str = ...) -> None: ...
+    def find(self, st: Text, by: str = ..., include_obsolete_entries: bool = ..., msgctxt: bool = ...) -> _TB | None: ...
     def ordered_metadata(self) -> list[tuple[Text, Text]]: ...
     def to_binary(self) -> bytes: ...
 
@@ -56,11 +56,11 @@ class POFile(_BaseFile[POEntry]):
 class MOFile(_BaseFile[MOEntry]):
     MAGIC: int
     MAGIC_SWAPPED: int
-    magic_number: Optional[int]
+    magic_number: int | None
     version: int
     def __init__(self, *args: Any, **kwargs: Any) -> None: ...
     def save_as_pofile(self, fpath: str) -> None: ...
-    def save(self, fpath: Optional[Text] = ...) -> None: ...  # type: ignore # binary file does not allow argument repr_method
+    def save(self, fpath: Text | None = ...) -> None: ...  # type: ignore # binary file does not allow argument repr_method
     def percent_translated(self) -> int: ...
     def translated_entries(self) -> List[MOEntry]: ...
     def untranslated_entries(self) -> List[MOEntry]: ...
@@ -84,10 +84,10 @@ class POEntry(_BaseEntry):
     tcomment: Text
     occurrences: List[Tuple[str, int]]
     flags: List[Text]
-    previous_msgctxt: Optional[Text]
-    previous_msgid: Optional[Text]
-    previous_msgid_plural: Optional[Text]
-    linenum: Optional[int]
+    previous_msgctxt: Text | None
+    previous_msgid: Text | None
+    previous_msgid_plural: Text | None
+    linenum: int | None
     def __init__(self, *args: Any, **kwargs: Any) -> None: ...
     def __unicode__(self, wrapwidth: int = ...) -> Text: ...
     def __cmp__(self, other: POEntry) -> int: ...
@@ -110,9 +110,9 @@ class MOEntry(_BaseEntry):
     tcomment: Text
     occurrences: List[Tuple[str, int]]
     flags: List[Text]
-    previous_msgctxt: Optional[Text]
-    previous_msgid: Optional[Text]
-    previous_msgid_plural: Optional[Text]
+    previous_msgctxt: Text | None
+    previous_msgid: Text | None
+    previous_msgid_plural: Text | None
     def __init__(self, *args: Any, **kwargs: Any) -> None: ...
     def __hash__(self) -> int: ...
 
@@ -123,7 +123,7 @@ class _POFileParser(Generic[_TP]):
     current_line: int
     current_entry: POEntry
     current_state: str
-    current_token: Optional[str]
+    current_token: str | None
     msgstr_index: int
     entry_obsolete: int
     def __init__(self, pofile: Text, *args: Any, **kwargs: Any) -> None: ...