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

stdlib/datetime.pyi

@@ -1,6 +1,6 @@
 import sys
 from time import struct_time
-from typing import ClassVar, NamedTuple, Optional, SupportsAbs, Tuple, Type, TypeVar, overload
+from typing import ClassVar, NamedTuple, SupportsAbs, Tuple, Type, TypeVar, overload
 
 _S = TypeVar("_S")
 
@@ -8,9 +8,9 @@ MINYEAR: int
 MAXYEAR: int
 
 class tzinfo:
-    def tzname(self, dt: Optional[datetime]) -> Optional[str]: ...
-    def utcoffset(self, dt: Optional[datetime]) -> Optional[timedelta]: ...
-    def dst(self, dt: Optional[datetime]) -> Optional[timedelta]: ...
+    def tzname(self, dt: datetime | None) -> str | None: ...
+    def utcoffset(self, dt: datetime | None) -> timedelta | None: ...
+    def dst(self, dt: datetime | None) -> timedelta | None: ...
     def fromutc(self, dt: datetime) -> datetime: ...
 
 # Alias required to avoid name conflicts with date(time).tzinfo.
@@ -91,7 +91,7 @@ class time:
         minute: int = ...,
         second: int = ...,
         microsecond: int = ...,
-        tzinfo: Optional[_tzinfo] = ...,
+        tzinfo: _tzinfo | None = ...,
         *,
         fold: int = ...,
     ) -> _S: ...
@@ -104,7 +104,7 @@ class time:
     @property
     def microsecond(self) -> int: ...
     @property
-    def tzinfo(self) -> Optional[_tzinfo]: ...
+    def tzinfo(self) -> _tzinfo | None: ...
     @property
     def fold(self) -> int: ...
     def __le__(self, other: time) -> bool: ...
@@ -118,16 +118,16 @@ class time:
         def fromisoformat(cls: Type[_S], time_string: str) -> _S: ...
     def strftime(self, fmt: str) -> str: ...
     def __format__(self, fmt: str) -> str: ...
-    def utcoffset(self) -> Optional[timedelta]: ...
-    def tzname(self) -> Optional[str]: ...
-    def dst(self) -> Optional[timedelta]: ...
+    def utcoffset(self) -> timedelta | None: ...
+    def tzname(self) -> str | None: ...
+    def dst(self) -> timedelta | None: ...
     def replace(
         self,
         hour: int = ...,
         minute: int = ...,
         second: int = ...,
         microsecond: int = ...,
-        tzinfo: Optional[_tzinfo] = ...,
+        tzinfo: _tzinfo | None = ...,
         *,
         fold: int = ...,
     ) -> time: ...
@@ -195,7 +195,7 @@ class datetime(date):
         minute: int = ...,
         second: int = ...,
         microsecond: int = ...,
-        tzinfo: Optional[_tzinfo] = ...,
+        tzinfo: _tzinfo | None = ...,
         *,
         fold: int = ...,
     ) -> _S: ...
@@ -214,11 +214,11 @@ class datetime(date):
     @property
     def microsecond(self) -> int: ...
     @property
-    def tzinfo(self) -> Optional[_tzinfo]: ...
+    def tzinfo(self) -> _tzinfo | None: ...
     @property
     def fold(self) -> int: ...
     @classmethod
-    def fromtimestamp(cls: Type[_S], t: float, tz: Optional[_tzinfo] = ...) -> _S: ...
+    def fromtimestamp(cls: Type[_S], t: float, tz: _tzinfo | None = ...) -> _S: ...
     @classmethod
     def utcfromtimestamp(cls: Type[_S], t: float) -> _S: ...
     @classmethod
@@ -227,7 +227,7 @@ class datetime(date):
     def fromordinal(cls: Type[_S], n: int) -> _S: ...
     if sys.version_info >= (3, 8):
         @classmethod
-        def now(cls: Type[_S], tz: Optional[_tzinfo] = ...) -> _S: ...
+        def now(cls: Type[_S], tz: _tzinfo | None = ...) -> _S: ...
     else:
         @overload
         @classmethod
@@ -238,7 +238,7 @@ class datetime(date):
     @classmethod
     def utcnow(cls: Type[_S]) -> _S: ...
     @classmethod
-    def combine(cls, date: _date, time: _time, tzinfo: Optional[_tzinfo] = ...) -> datetime: ...
+    def combine(cls, date: _date, time: _time, tzinfo: _tzinfo | None = ...) -> datetime: ...
     if sys.version_info >= (3, 7):
         @classmethod
         def fromisoformat(cls: Type[_S], date_string: str) -> _S: ...
@@ -260,21 +260,21 @@ class datetime(date):
         minute: int = ...,
         second: int = ...,
         microsecond: int = ...,
-        tzinfo: Optional[_tzinfo] = ...,
+        tzinfo: _tzinfo | None = ...,
         *,
         fold: int = ...,
     ) -> datetime: ...
     if sys.version_info >= (3, 8):
-        def astimezone(self: _S, tz: Optional[_tzinfo] = ...) -> _S: ...
+        def astimezone(self: _S, tz: _tzinfo | None = ...) -> _S: ...
     else:
-        def astimezone(self, tz: Optional[_tzinfo] = ...) -> datetime: ...
+        def astimezone(self, tz: _tzinfo | None = ...) -> datetime: ...
     def ctime(self) -> str: ...
     def isoformat(self, sep: str = ..., timespec: str = ...) -> str: ...
     @classmethod
     def strptime(cls, date_string: str, format: str) -> datetime: ...
-    def utcoffset(self) -> Optional[timedelta]: ...
-    def tzname(self) -> Optional[str]: ...
-    def dst(self) -> Optional[timedelta]: ...
+    def utcoffset(self) -> timedelta | None: ...
+    def tzname(self) -> str | None: ...
+    def dst(self) -> timedelta | None: ...
     def __le__(self, other: datetime) -> bool: ...  # type: ignore
     def __lt__(self, other: datetime) -> bool: ...  # type: ignore
     def __ge__(self, other: datetime) -> bool: ...  # type: ignore