upgrade black version (#4486)

Manually removed a number of trailing commas to prevent black from unnecessarily
exploding some collections.

stdlib/2and3/_typeshed/__init__.pyi

@@ -136,12 +136,8 @@ OpenBinaryModeUpdating = Literal[
     "b+x",
     "+bx",
 ]
-OpenBinaryModeWriting = Literal[
-    "wb", "bw", "ab", "ba", "xb", "bx",
-]
-OpenBinaryModeReading = Literal[
-    "rb", "br", "rbU", "rUb", "Urb", "brU", "bUr", "Ubr",
-]
+OpenBinaryModeWriting = Literal["wb", "bw", "ab", "ba", "xb", "bx"]
+OpenBinaryModeReading = Literal["rb", "br", "rbU", "rUb", "Urb", "brU", "bUr", "Ubr"]
 OpenBinaryMode = Union[OpenBinaryModeUpdating, OpenBinaryModeReading, OpenBinaryModeWriting]
 
 class HasFileno(Protocol):

stdlib/2and3/builtins.pyi

@@ -641,7 +641,7 @@ if sys.version_info >= (3,):
         def split(self, sep: Optional[bytes] = ..., maxsplit: int = ...) -> List[bytes]: ...
         def splitlines(self, keepends: bool = ...) -> List[bytes]: ...
         def startswith(
-            self, prefix: Union[bytes, Tuple[bytes, ...]], start: Optional[int] = ..., end: Optional[int] = ...,
+            self, prefix: Union[bytes, Tuple[bytes, ...]], start: Optional[int] = ..., end: Optional[int] = ...
         ) -> bool: ...
         def strip(self, __bytes: Optional[bytes] = ...) -> bytes: ...
         def swapcase(self) -> bytes: ...
@@ -759,7 +759,7 @@ class bytearray(MutableSequence[int], ByteString):
     def split(self, sep: Optional[bytes] = ..., maxsplit: int = ...) -> List[bytearray]: ...
     def splitlines(self, keepends: bool = ...) -> List[bytearray]: ...
     def startswith(
-        self, __prefix: Union[bytes, Tuple[bytes, ...]], __start: Optional[int] = ..., __end: Optional[int] = ...,
+        self, __prefix: Union[bytes, Tuple[bytes, ...]], __start: Optional[int] = ..., __end: Optional[int] = ...
     ) -> bool: ...
     def strip(self, __bytes: Optional[bytes] = ...) -> bytearray: ...
     def swapcase(self) -> bytearray: ...

stdlib/2and3/difflib.pyi

@@ -57,7 +57,7 @@ class SequenceMatcher(Generic[_T]):
 # mypy thinks the signatures of the overloads overlap, but the types still work fine
 @overload
 def get_close_matches(  # type: ignore
-    word: AnyStr, possibilities: Iterable[AnyStr], n: int = ..., cutoff: float = ...,
+    word: AnyStr, possibilities: Iterable[AnyStr], n: int = ..., cutoff: float = ...
 ) -> List[AnyStr]: ...
 @overload
 def get_close_matches(

stdlib/2and3/ssl.pyi

@@ -49,7 +49,7 @@ def wrap_socket(
     ciphers: Optional[str] = ...,
 ) -> SSLSocket: ...
 def create_default_context(
-    purpose: Any = ..., *, cafile: Optional[str] = ..., capath: Optional[str] = ..., cadata: Union[Text, bytes, None] = ...,
+    purpose: Any = ..., *, cafile: Optional[str] = ..., capath: Optional[str] = ..., cadata: Union[Text, bytes, None] = ...
 ) -> SSLContext: ...
 
 if sys.version_info >= (3, 7):
@@ -300,7 +300,7 @@ class SSLContext:
     ) -> None: ...
     def load_default_certs(self, purpose: Purpose = ...) -> None: ...
     def load_verify_locations(
-        self, cafile: Optional[StrPath] = ..., capath: Optional[StrPath] = ..., cadata: Union[Text, bytes, None] = ...,
+        self, cafile: Optional[StrPath] = ..., capath: Optional[StrPath] = ..., cadata: Union[Text, bytes, None] = ...
     ) -> None: ...
     def get_ca_certs(self, binary_form: bool = ...) -> Union[List[_PeerCertRetDictType], List[bytes]]: ...
     def set_default_verify_paths(self) -> None: ...

stdlib/2and3/xml/sax/__init__.pyi

@@ -28,6 +28,6 @@ if sys.version_info >= (3, 8):
 else:
     def make_parser(parser_list: List[str] = ...) -> XMLReader: ...
 
-def parse(source: Union[str, IO[str], IO[bytes]], handler: ContentHandler, errorHandler: ErrorHandler = ...,) -> None: ...
-def parseString(string: Union[bytes, Text], handler: ContentHandler, errorHandler: Optional[ErrorHandler] = ...,) -> None: ...
+def parse(source: Union[str, IO[str], IO[bytes]], handler: ContentHandler, errorHandler: ErrorHandler = ...) -> None: ...
+def parseString(string: Union[bytes, Text], handler: ContentHandler, errorHandler: Optional[ErrorHandler] = ...) -> None: ...
 def _create_parser(parser_name: str) -> XMLReader: ...

stdlib/2and3/zipfile.pyi

@@ -48,7 +48,7 @@ class ZipExtFile(io.BufferedIOBase):
     name: str
     if sys.version_info >= (3, 7):
         def __init__(
-            self, fileobj: IO[bytes], mode: str, zipinfo: ZipInfo, pwd: Optional[bytes] = ..., close_fileobj: bool = ...,
+            self, fileobj: IO[bytes], mode: str, zipinfo: ZipInfo, pwd: Optional[bytes] = ..., close_fileobj: bool = ...
         ) -> None: ...
     else:
         def __init__(