apply black and isort (#4287)

* apply black and isort

* move some type ignores

stdlib/2and3/wsgiref/handlers.pyi

@@ -1,17 +1,16 @@
 import sys
 from abc import abstractmethod
 from types import TracebackType
-from typing import Optional, Dict, MutableMapping, Type, Text, Callable, List, Tuple, IO
+from typing import IO, Callable, Dict, List, MutableMapping, Optional, Text, Tuple, Type
 
 from .headers import Headers
-from .types import WSGIApplication, WSGIEnvironment, StartResponse, InputStream, ErrorStream
+from .types import ErrorStream, InputStream, StartResponse, WSGIApplication, WSGIEnvironment
 from .util import FileWrapper, guess_scheme
 
-_exc_info = Tuple[Optional[Type[BaseException]],
-                  Optional[BaseException],
-                  Optional[TracebackType]]
+_exc_info = Tuple[Optional[Type[BaseException]], Optional[BaseException], Optional[TracebackType]]
 
 def format_date_time(timestamp: Optional[float]) -> str: ...  # undocumented
+
 if sys.version_info >= (3, 2):
     def read_environ() -> Dict[str, str]: ...
 
@@ -34,15 +33,15 @@ class BaseHandler:
     error_status: str
     error_headers: List[Tuple[Text, Text]]
     error_body: bytes
-
     def run(self, application: WSGIApplication) -> None: ...
-
     def setup_environ(self) -> None: ...
     def finish_response(self) -> None: ...
     def get_scheme(self) -> str: ...
     def set_content_length(self) -> None: ...
     def cleanup_headers(self) -> None: ...
-    def start_response(self, status: Text, headers: List[Tuple[Text, Text]], exc_info: Optional[_exc_info] = ...) -> Callable[[bytes], None]: ...
+    def start_response(
+        self, status: Text, headers: List[Tuple[Text, Text]], exc_info: Optional[_exc_info] = ...
+    ) -> Callable[[bytes], None]: ...
     def send_preamble(self) -> None: ...
     def write(self, data: bytes) -> None: ...
     def sendfile(self) -> bool: ...
@@ -54,7 +53,6 @@ class BaseHandler:
     def log_exception(self, exc_info: _exc_info) -> None: ...
     def handle_error(self) -> None: ...
     def error_output(self, environ: WSGIEnvironment, start_response: StartResponse) -> List[bytes]: ...
-
     @abstractmethod
     def _write(self, data: bytes) -> None: ...
     @abstractmethod
@@ -71,7 +69,15 @@ class SimpleHandler(BaseHandler):
     stdout: IO[bytes]
     stderr: ErrorStream
     base_env: MutableMapping[str, str]
-    def __init__(self, stdin: InputStream, stdout: IO[bytes], stderr: ErrorStream, environ: MutableMapping[str, str], multithread: bool = ..., multiprocess: bool = ...) -> None: ...
+    def __init__(
+        self,
+        stdin: InputStream,
+        stdout: IO[bytes],
+        stderr: ErrorStream,
+        environ: MutableMapping[str, str],
+        multithread: bool = ...,
+        multiprocess: bool = ...,
+    ) -> None: ...
     def get_stdin(self) -> InputStream: ...
     def get_stderr(self) -> ErrorStream: ...
     def add_cgi_vars(self) -> None: ...

stdlib/2and3/wsgiref/headers.pyi

@@ -1,5 +1,5 @@
 import sys
-from typing import overload, Pattern, Optional, List, Tuple
+from typing import List, Optional, Pattern, Tuple, overload
 
 _HeaderList = List[Tuple[str, str]]
 

stdlib/2and3/wsgiref/simple_server.pyi

@@ -1,8 +1,8 @@
 import sys
-from typing import Optional, List, Type, TypeVar, overload
+from typing import List, Optional, Type, TypeVar, overload
 
 from .handlers import SimpleHandler
-from .types import WSGIApplication, WSGIEnvironment, StartResponse, ErrorStream
+from .types import ErrorStream, StartResponse, WSGIApplication, WSGIEnvironment
 
 if sys.version_info < (3,):
     from BaseHTTPServer import BaseHTTPRequestHandler, HTTPServer
@@ -33,8 +33,9 @@ class WSGIRequestHandler(BaseHTTPRequestHandler):
 def demo_app(environ: WSGIEnvironment, start_response: StartResponse) -> List[bytes]: ...
 
 _S = TypeVar("_S", bound=WSGIServer)
-
 @overload
 def make_server(host: str, port: int, app: WSGIApplication, *, handler_class: Type[WSGIRequestHandler] = ...) -> WSGIServer: ...
 @overload
-def make_server(host: str, port: int, app: WSGIApplication, server_class: Type[_S], handler_class: Type[WSGIRequestHandler] = ...) -> _S: ...
+def make_server(
+    host: str, port: int, app: WSGIApplication, server_class: Type[_S], handler_class: Type[WSGIRequestHandler] = ...
+) -> _S: ...

stdlib/2and3/wsgiref/validate.pyi

@@ -1,7 +1,7 @@
 import sys
-from typing import Any, Iterable, Iterator, Optional, NoReturn, Callable
+from typing import Any, Callable, Iterable, Iterator, NoReturn, Optional
 
-from _typeshed.wsgi import WSGIApplication, InputStream, ErrorStream
+from _typeshed.wsgi import ErrorStream, InputStream, WSGIApplication
 
 class WSGIWarning(Warning): ...