Switch to PEP-604 syntax in python2 stubs (#5915)

Signed-off-by: oleg.hoefling <oleg.hoefling@gmail.com>

stdlib/@python2/socket.pyi

@@ -1,5 +1,5 @@
 import sys
-from typing import Any, BinaryIO, Iterable, List, Optional, Text, Tuple, TypeVar, Union, overload
+from typing import Any, BinaryIO, Iterable, List, Text, Tuple, TypeVar, Union, overload
 
 # ----- Constants -----
 # Some socket families are listed in the "Socket families" section of the docs,
@@ -389,10 +389,10 @@ class socket:
     def __init__(self, family: int = ..., type: int = ..., proto: int = ...) -> None: ...
     # --- methods ---
     def accept(self) -> Tuple[socket, _RetAddress]: ...
-    def bind(self, address: Union[_Address, bytes]) -> None: ...
+    def bind(self, address: _Address | bytes) -> None: ...
     def close(self) -> None: ...
-    def connect(self, address: Union[_Address, bytes]) -> None: ...
-    def connect_ex(self, address: Union[_Address, bytes]) -> int: ...
+    def connect(self, address: _Address | bytes) -> None: ...
+    def connect_ex(self, address: _Address | bytes) -> int: ...
     def detach(self) -> int: ...
     def dup(self) -> socket: ...
     def fileno(self) -> int: ...
@@ -402,9 +402,9 @@ class socket:
     def getsockopt(self, level: int, optname: int) -> int: ...
     @overload
     def getsockopt(self, level: int, optname: int, buflen: int) -> bytes: ...
-    def gettimeout(self) -> Optional[float]: ...
+    def gettimeout(self) -> float | None: ...
     if sys.platform == "win32":
-        def ioctl(self, control: int, option: Union[int, Tuple[int, int, int]]) -> None: ...
+        def ioctl(self, control: int, option: int | Tuple[int, int, int]) -> None: ...
     def listen(self, __backlog: int) -> None: ...
     # Note that the makefile's documented windows-specific behavior is not represented
     def makefile(self, mode: unicode = ..., buffering: int = ...) -> BinaryIO: ...
@@ -419,8 +419,8 @@ class socket:
     @overload
     def sendto(self, data: bytes, flags: int, address: _Address) -> int: ...
     def setblocking(self, flag: bool) -> None: ...
-    def settimeout(self, value: Optional[float]) -> None: ...
-    def setsockopt(self, level: int, optname: int, value: Union[int, bytes]) -> None: ...
+    def settimeout(self, value: float | None) -> None: ...
+    def setsockopt(self, level: int, optname: int, value: int | bytes) -> None: ...
     if sys.platform == "win32":
         def share(self, process_id: int) -> bytes: ...
     def shutdown(self, how: int) -> None: ...
@@ -428,16 +428,16 @@ class socket:
 # ----- Functions -----
 
 def create_connection(
-    address: Tuple[Optional[str], int],
-    timeout: Optional[float] = ...,
-    source_address: Optional[Tuple[Union[bytearray, bytes, Text], int]] = ...,
+    address: Tuple[str | None, int],
+    timeout: float | None = ...,
+    source_address: Tuple[bytearray | bytes | Text, int] | None = ...,
 ) -> socket: ...
 def fromfd(fd: int, family: int, type: int, proto: int = ...) -> socket: ...
 
 # the 5th tuple item is an address
 def getaddrinfo(
-    host: Optional[Union[bytearray, bytes, Text]],
-    port: Union[str, int, None],
+    host: bytearray | bytes | Text | None,
+    port: str | int | None,
     family: int = ...,
     socktype: int = ...,
     proto: int = ...,
@@ -448,7 +448,7 @@ def gethostbyname(hostname: str) -> str: ...
 def gethostbyname_ex(hostname: str) -> Tuple[str, List[str], List[str]]: ...
 def gethostname() -> str: ...
 def gethostbyaddr(ip_address: str) -> Tuple[str, List[str], List[str]]: ...
-def getnameinfo(sockaddr: Union[Tuple[str, int], Tuple[str, int, int, int]], flags: int) -> Tuple[str, str]: ...
+def getnameinfo(sockaddr: Tuple[str, int] | Tuple[str, int, int, int], flags: int) -> Tuple[str, str]: ...
 def getprotobyname(protocolname: str) -> int: ...
 def getservbyname(servicename: str, protocolname: str = ...) -> int: ...
 def getservbyport(port: int, protocolname: str = ...) -> str: ...
@@ -457,7 +457,7 @@ if sys.platform == "win32":
     def socketpair(family: int = ..., type: int = ..., proto: int = ...) -> Tuple[socket, socket]: ...
 
 else:
-    def socketpair(family: Optional[int] = ..., type: int = ..., proto: int = ...) -> Tuple[socket, socket]: ...
+    def socketpair(family: int | None = ..., type: int = ..., proto: int = ...) -> Tuple[socket, socket]: ...
 
 def ntohl(x: int) -> int: ...  # param & ret val are 32-bit ints
 def ntohs(x: int) -> int: ...  # param & ret val are 16-bit ints
@@ -467,5 +467,5 @@ def inet_aton(ip_string: str) -> bytes: ...  # ret val 4 bytes in length
 def inet_ntoa(packed_ip: bytes) -> str: ...
 def inet_pton(address_family: int, ip_string: str) -> bytes: ...
 def inet_ntop(address_family: int, packed_ip: bytes) -> str: ...
-def getdefaulttimeout() -> Optional[float]: ...
-def setdefaulttimeout(timeout: Optional[float]) -> None: ...
+def getdefaulttimeout() -> float | None: ...
+def setdefaulttimeout(timeout: float | None) -> None: ...