Create stubs for Flask (#2740)

See permission in pallets/flask#2012.

Fixes #28.

third_party/2and3/flask/__init__.pyi

@@ -0,0 +1,45 @@
+# Stubs for flask (Python 3.6)
+#
+# NOTE: This dynamically typed stub was automatically generated by stubgen.
+
+from .app import Flask as Flask
+from .blueprints import Blueprint as Blueprint
+from .config import Config as Config
+from .ctx import after_this_request as after_this_request
+from .ctx import copy_current_request_context as copy_current_request_context
+from .ctx import has_app_context as has_app_context
+from .ctx import has_request_context as has_request_context
+from .globals import current_app as current_app
+from .globals import g as g
+from .globals import request as request
+from .globals import session as session
+from .helpers import flash as flash
+from .helpers import get_flashed_messages as get_flashed_messages
+from .helpers import get_template_attribute as get_template_attribute
+from .helpers import make_response as make_response
+from .helpers import safe_join as safe_join
+from .helpers import send_file as send_file
+from .helpers import send_from_directory as send_from_directory
+from .helpers import stream_with_context as stream_with_context
+from .helpers import url_for as url_for
+from .json import jsonify as jsonify
+from .signals import appcontext_popped as appcontext_popped
+from .signals import appcontext_pushed as appcontext_pushed
+from .signals import appcontext_tearing_down as appcontext_tearing_down
+from .signals import before_render_template as before_render_template
+from .signals import got_request_exception as got_request_exception
+from .signals import message_flashed as message_flashed
+from .signals import request_finished as request_finished
+from .signals import request_started as request_started
+from .signals import request_tearing_down as request_tearing_down
+from .signals import signals_available as signals_available
+from .signals import template_rendered as template_rendered
+from .templating import render_template as render_template
+from .templating import render_template_string as render_template_string
+from .wrappers import Request as Request
+from .wrappers import Response as Response
+
+from werkzeug.exceptions import abort as abort
+from werkzeug.utils import redirect as redirect
+from jinja2 import Markup as Markup
+from jinja2 import escape as escape

third_party/2and3/flask/app.pyi

@@ -0,0 +1,147 @@
+# Stubs for flask.app (Python 3.6)
+#
+# NOTE: This dynamically typed stub was automatically generated by stubgen.
+
+from .blueprints import Blueprint
+from .config import Config, ConfigAttribute
+from .ctx import AppContext, RequestContext, _AppCtxGlobals
+from .globals import _request_ctx_stack, g, request, session
+from .helpers import _PackageBoundObject, find_package, get_debug_flag, get_env, get_flashed_messages, get_load_dotenv, locked_cached_property, url_for
+from .logging import create_logger
+from .sessions import SecureCookieSessionInterface
+from .signals import appcontext_tearing_down, got_request_exception, request_finished, request_started, request_tearing_down
+from .templating import DispatchingJinjaLoader, Environment
+from .wrappers import Request, Response
+from .testing import FlaskClient
+from typing import Any, Callable, ContextManager, Dict, List, Optional, Type, TypeVar, Union
+
+def setupmethod(f: Any): ...
+
+_T = TypeVar('_T')
+
+class Flask(_PackageBoundObject):
+    request_class: type = ...
+    response_class: type = ...
+    jinja_environment: type = ...
+    app_ctx_globals_class: type = ...
+    config_class: type = ...
+    testing: Any = ...
+    secret_key: Any = ...
+    session_cookie_name: Any = ...
+    permanent_session_lifetime: Any = ...
+    send_file_max_age_default: Any = ...
+    use_x_sendfile: Any = ...
+    json_encoder: Any = ...
+    json_decoder: Any = ...
+    jinja_options: Any = ...
+    default_config: Any = ...
+    url_rule_class: type = ...
+    test_client_class: type = ...
+    test_cli_runner_class: type = ...
+    session_interface: Any = ...
+    import_name: str = ...
+    template_folder: str = ...
+    root_path: Any = ...
+    static_url_path: Any = ...
+    static_folder: str = ...
+    instance_path: Any = ...
+    config: Dict[str, Any] = ...
+    view_functions: Any = ...
+    error_handler_spec: Any = ...
+    url_build_error_handlers: Any = ...
+    before_request_funcs: Dict[Optional[str], List[Callable[[], Any]]] = ...
+    before_first_request_funcs: List[Callable[[], None]] = ...
+    after_request_funcs: Dict[Optional[str], List[Callable[[Response], Response]]] = ...
+    teardown_request_funcs: Dict[Optional[str], List[Callable[[Optional[Exception]], Any]]] = ...
+    teardown_appcontext_funcs: List[Callable[[Optional[Exception]], Any]] = ...
+    url_value_preprocessors: Any = ...
+    url_default_functions: Any = ...
+    template_context_processors: Any = ...
+    shell_context_processors: Any = ...
+    blueprints: Any = ...
+    extensions: Any = ...
+    url_map: Any = ...
+    subdomain_matching: Any = ...
+    cli: Any = ...
+    def __init__(self, import_name: str, static_url_path: Optional[str] = ..., static_folder: str = ..., static_host: Optional[str] = ..., host_matching: bool = ..., subdomain_matching: bool = ..., template_folder: str = ..., instance_path: Optional[str] = ..., instance_relative_config: bool = ..., root_path: Optional[str] = ...) -> None: ...
+    @property
+    def name(self) -> str: ...
+    @property
+    def propagate_exceptions(self): ...
+    @property
+    def preserve_context_on_exception(self): ...
+    @property
+    def logger(self): ...
+    @property
+    def jinja_env(self): ...
+    @property
+    def got_first_request(self): ...
+    def make_config(self, instance_relative: bool = ...): ...
+    def auto_find_instance_path(self): ...
+    def open_instance_resource(self, resource: Any, mode: str = ...): ...
+    templates_auto_reload: Any = ...
+    def create_jinja_environment(self): ...
+    def create_global_jinja_loader(self): ...
+    def select_jinja_autoescape(self, filename: Any): ...
+    def update_template_context(self, context: Any) -> None: ...
+    def make_shell_context(self): ...
+    env: Any = ...
+    debug: Any = ...
+    def run(self, host: Optional[str] = ..., port: Optional[int] = ..., debug: Optional[bool] = ..., load_dotenv: bool = ..., **options: Any) -> None: ...
+    def test_client(self, use_cookies: bool = ..., **kwargs: Any) -> testing.FlaskClient: ...
+    def test_cli_runner(self, **kwargs: Any): ...
+    def open_session(self, request: Any): ...
+    def save_session(self, session: Any, response: Any): ...
+    def make_null_session(self): ...
+    def register_blueprint(self, blueprint: Blueprint, **options: Any) -> None: ...
+    def iter_blueprints(self): ...
+    def add_url_rule(self, rule: str, endpoint: Optional[str] = ..., view_func: Callable[..., Any] = ..., provide_automatic_options: Optional[bool] = ..., **options: Any) -> None: ...
+    def route(self, rule: str, **options: Any) -> Callable[[Callable[..., _T]], Callable[..., _T]]: ...
+    def endpoint(self, endpoint: str) -> Callable[[Callable[..., _T]], Callable[..., _T]]: ...
+    def errorhandler(self, code_or_exception: Union[int, Type[Exception]]) -> Callable[[Callable[..., _T]], Callable[..., _T]]: ...
+    def register_error_handler(self, code_or_exception: Union[int, Type[Exception]], f: Callable[..., Any]) -> None: ...
+    def template_filter(self, name: Optional[Any] = ...): ...
+    def add_template_filter(self, f: Any, name: Optional[Any] = ...) -> None: ...
+    def template_test(self, name: Optional[Any] = ...): ...
+    def add_template_test(self, f: Any, name: Optional[Any] = ...) -> None: ...
+    def template_global(self, name: Optional[Any] = ...): ...
+    def add_template_global(self, f: Any, name: Optional[Any] = ...) -> None: ...
+    def before_request(self, f: Callable[[], _T]) -> Callable[[], _T]: ...
+    def before_first_request(self, f: Callable[[], _T]) -> Callable[[], _T]: ...
+    def after_request(self, f: Callable[[Response], Response]) -> Callable[[Response], Response]: ...
+    def teardown_request(self, f: Callable[[Optional[Exception]], _T]) -> Callable[[Optional[Exception]], _T]: ...
+    def teardown_appcontext(self, f: Callable[[Optional[Exception]], _T]) -> Callable[[Optional[Exception]], _T]: ...
+    def context_processor(self, f: Any): ...
+    def shell_context_processor(self, f: Any): ...
+    def url_value_preprocessor(self, f: Any): ...
+    def url_defaults(self, f: Any): ...
+    def handle_http_exception(self, e: Any): ...
+    def trap_http_exception(self, e: Any): ...
+    def handle_user_exception(self, e: Any): ...
+    def handle_exception(self, e: Any): ...
+    def log_exception(self, exc_info: Any) -> None: ...
+    def raise_routing_exception(self, request: Any) -> None: ...
+    def dispatch_request(self): ...
+    def full_dispatch_request(self): ...
+    def finalize_request(self, rv: Any, from_error_handler: bool = ...): ...
+    def try_trigger_before_first_request_functions(self): ...
+    def make_default_options_response(self): ...
+    def should_ignore_error(self, error: Any): ...
+    def make_response(self, rv: Any): ...
+    def create_url_adapter(self, request: Any): ...
+    def inject_url_defaults(self, endpoint: Any, values: Any) -> None: ...
+    def handle_url_build_error(self, error: Any, endpoint: Any, values: Any): ...
+    def preprocess_request(self): ...
+    def process_response(self, response: Any): ...
+    def do_teardown_request(self, exc: Any = ...) -> None: ...
+    def do_teardown_appcontext(self, exc: Any = ...) -> None: ...
+    def app_context(self): ...
+    def request_context(self, environ: Any): ...
+    def test_request_context(self, *args: Any, **kwargs: Any) -> ContextManager[RequestContext]: ...
+    def wsgi_app(self, environ: Any, start_response: Any): ...
+    def __call__(self, environ: Any, start_response: Any): ...
+
+    # These are not preset at runtime but we add them since monkeypatching this
+    # class is quite common.
+    def __setattr__(self, name: str, value: Any): ...
+    def __getattr__(self, name: str): ...

third_party/2and3/flask/blueprints.pyi

@@ -0,0 +1,64 @@
+# Stubs for flask.blueprints (Python 3.6)
+#
+# NOTE: This dynamically typed stub was automatically generated by stubgen.
+
+from .helpers import _PackageBoundObject
+from typing import Any, Callable, Optional, Type, TypeVar, Union
+
+_T = TypeVar('_T')
+
+class BlueprintSetupState:
+    app: Any = ...
+    blueprint: Any = ...
+    options: Any = ...
+    first_registration: Any = ...
+    subdomain: Any = ...
+    url_prefix: Any = ...
+    url_defaults: Any = ...
+    def __init__(self, blueprint: Any, app: Any, options: Any, first_registration: Any) -> None: ...
+    def add_url_rule(self, rule: str, endpoint: Optional[str] = ..., view_func: Callable[..., Any] = ..., **options: Any) -> None: ...
+
+class Blueprint(_PackageBoundObject):
+    warn_on_modifications: bool = ...
+    json_encoder: Any = ...
+    json_decoder: Any = ...
+    import_name: str = ...
+    template_folder: Optional[str] = ...
+    root_path: Optional[str] = ...
+    name: str = ...
+    url_prefix: Optional[str] = ...
+    subdomain: Optional[str] = ...
+    static_folder: Optional[str] = ...
+    static_url_path: Optional[str] = ...
+    deferred_functions: Any = ...
+    url_values_defaults: Any = ...
+    def __init__(self, name: str, import_name: str, static_folder: Optional[str] = ..., static_url_path: Optional[str] = ..., template_folder: Optional[str] = ..., url_prefix: Optional[str] = ..., subdomain: Optional[str] = ..., url_defaults: Optional[Any] = ..., root_path: Optional[str] = ...) -> None: ...
+    def record(self, func: Any) -> None: ...
+    def record_once(self, func: Any): ...
+    def make_setup_state(self, app: Any, options: Any, first_registration: bool = ...): ...
+    def register(self, app: Any, options: Any, first_registration: bool = ...) -> None: ...
+    def route(self, rule: str, **options: Any) -> Callable[[Callable[..., Any]], Callable[..., Any]]: ...
+    def add_url_rule(self, rule: str, endpoint: Optional[str] = ..., view_func: Callable[..., Any] = ..., **options: Any) -> None: ...
+    def endpoint(self, endpoint: str) -> Callable[[Callable[..., _T]], Callable[..., _T]]: ...
+    def app_template_filter(self, name: Optional[Any] = ...): ...
+    def add_app_template_filter(self, f: Any, name: Optional[Any] = ...) -> None: ...
+    def app_template_test(self, name: Optional[Any] = ...): ...
+    def add_app_template_test(self, f: Any, name: Optional[Any] = ...) -> None: ...
+    def app_template_global(self, name: Optional[Any] = ...): ...
+    def add_app_template_global(self, f: Any, name: Optional[Any] = ...) -> None: ...
+    def before_request(self, f: Any): ...
+    def before_app_request(self, f: Any): ...
+    def before_app_first_request(self, f: Any): ...
+    def after_request(self, f: Any): ...
+    def after_app_request(self, f: Any): ...
+    def teardown_request(self, f: Any): ...
+    def teardown_app_request(self, f: Any): ...
+    def context_processor(self, f: Any): ...
+    def app_context_processor(self, f: Any): ...
+    def app_errorhandler(self, code: Any): ...
+    def url_value_preprocessor(self, f: Any): ...
+    def url_defaults(self, f: Any): ...
+    def app_url_value_preprocessor(self, f: Any): ...
+    def app_url_defaults(self, f: Any): ...
+    def errorhandler(self, code_or_exception: Union[int, Type[Exception]]) -> Callable[[Callable[..., _T]], Callable[..., _T]]: ...
+    def register_error_handler(self, code_or_exception: Union[int, Type[Exception]], f: Callable[..., Any]) -> None: ...

third_party/2and3/flask/cli.pyi

@@ -0,0 +1,64 @@
+# Stubs for flask.cli (Python 3.6)
+#
+# NOTE: This dynamically typed stub was automatically generated by stubgen.
+
+import click
+from .globals import current_app
+from .helpers import get_debug_flag, get_env, get_load_dotenv
+from typing import Any, Optional
+
+class NoAppException(click.UsageError): ...
+
+def find_best_app(script_info: Any, module: Any): ...
+def call_factory(script_info: Any, app_factory: Any, arguments: Any = ...): ...
+def find_app_by_string(script_info: Any, module: Any, app_name: Any): ...
+def prepare_import(path: Any): ...
+def locate_app(script_info: Any, module_name: Any, app_name: Any, raise_if_not_found: bool = ...): ...
+def get_version(ctx: Any, param: Any, value: Any): ...
+
+version_option: Any
+
+class DispatchingApp:
+    loader: Any = ...
+    def __init__(self, loader: Any, use_eager_loading: bool = ...) -> None: ...
+    def __call__(self, environ: Any, start_response: Any): ...
+
+class ScriptInfo:
+    app_import_path: Any = ...
+    create_app: Any = ...
+    data: Any = ...
+    def __init__(self, app_import_path: Optional[Any] = ..., create_app: Optional[Any] = ...) -> None: ...
+    def load_app(self): ...
+
+pass_script_info: Any
+
+def with_appcontext(f: Any): ...
+
+class AppGroup(click.Group):
+    def command(self, *args: Any, **kwargs: Any): ...
+    def group(self, *args: Any, **kwargs: Any): ...
+
+class FlaskGroup(AppGroup):
+    create_app: Any = ...
+    load_dotenv: Any = ...
+    def __init__(self, add_default_commands: bool = ..., create_app: Optional[Any] = ..., add_version_option: bool = ..., load_dotenv: bool = ..., **extra: Any) -> None: ...
+    def get_command(self, ctx: Any, name: Any): ...
+    def list_commands(self, ctx: Any): ...
+    def main(self, *args: Any, **kwargs: Any): ...
+
+def load_dotenv(path: Optional[Any] = ...): ...
+def show_server_banner(env: Any, debug: Any, app_import_path: Any, eager_loading: Any): ...
+
+class CertParamType(click.ParamType):
+    name: str = ...
+    path_type: Any = ...
+    def __init__(self) -> None: ...
+    def convert(self, value: Any, param: Any, ctx: Any): ...
+
+def run_command(info: Any, host: Any, port: Any, reload: Any, debugger: Any, eager_loading: Any, with_threads: Any, cert: Any) -> None: ...
+def shell_command() -> None: ...
+def routes_command(sort: Any, all_methods: Any): ...
+
+cli: Any
+
+def main(as_module: bool = ...) -> None: ...

third_party/2and3/flask/config.pyi

@@ -0,0 +1,22 @@
+# Stubs for flask.config (Python 3.6)
+#
+# NOTE: This dynamically typed stub was automatically generated by stubgen.
+
+from typing import Any, Optional
+
+class ConfigAttribute:
+    __name__: Any = ...
+    get_converter: Any = ...
+    def __init__(self, name: Any, get_converter: Optional[Any] = ...) -> None: ...
+    def __get__(self, obj: Any, type: Optional[Any] = ...): ...
+    def __set__(self, obj: Any, value: Any) -> None: ...
+
+class Config(dict):
+    root_path: Any = ...
+    def __init__(self, root_path: Any, defaults: Optional[Any] = ...) -> None: ...
+    def from_envvar(self, variable_name: Any, silent: bool = ...): ...
+    def from_pyfile(self, filename: Any, silent: bool = ...): ...
+    def from_object(self, obj: Any) -> None: ...
+    def from_json(self, filename: Any, silent: bool = ...): ...
+    def from_mapping(self, *mapping: Any, **kwargs: Any): ...
+    def get_namespace(self, namespace: Any, lowercase: bool = ..., trim_namespace: bool = ...): ...

third_party/2and3/flask/ctx.pyi

@@ -0,0 +1,46 @@
+# Stubs for flask.ctx (Python 3.6)
+#
+# NOTE: This dynamically typed stub was automatically generated by stubgen.
+
+from .globals import _app_ctx_stack, _request_ctx_stack
+from .signals import appcontext_popped, appcontext_pushed
+from typing import Any, Optional
+
+class _AppCtxGlobals:
+    def get(self, name: Any, default: Optional[Any] = ...): ...
+    def pop(self, name: Any, default: Any = ...): ...
+    def setdefault(self, name: Any, default: Optional[Any] = ...): ...
+    def __contains__(self, item: Any): ...
+    def __iter__(self): ...
+
+def after_this_request(f: Any): ...
+def copy_current_request_context(f: Any): ...
+def has_request_context(): ...
+def has_app_context(): ...
+
+class AppContext:
+    app: Any = ...
+    url_adapter: Any = ...
+    g: Any = ...
+    def __init__(self, app: Any) -> None: ...
+    def push(self) -> None: ...
+    def pop(self, exc: Any = ...) -> None: ...
+    def __enter__(self): ...
+    def __exit__(self, exc_type: Any, exc_value: Any, tb: Any) -> None: ...
+
+class RequestContext:
+    app: Any = ...
+    request: Any = ...
+    url_adapter: Any = ...
+    flashes: Any = ...
+    session: Any = ...
+    preserved: bool = ...
+    def __init__(self, app: Any, environ: Any, request: Optional[Any] = ...) -> None: ...
+    g: Any = ...
+    def copy(self): ...
+    def match_request(self) -> None: ...
+    def push(self) -> None: ...
+    def pop(self, exc: Any = ...) -> None: ...
+    def auto_pop(self, exc: Any) -> None: ...
+    def __enter__(self): ...
+    def __exit__(self, exc_type: Any, exc_value: Any, tb: Any) -> None: ...

third_party/2and3/flask/debughelpers.pyi

@@ -0,0 +1,21 @@
+# Stubs for flask.debughelpers (Python 3.6)
+#
+# NOTE: This dynamically typed stub was automatically generated by stubgen.
+
+from .app import Flask
+from .blueprints import Blueprint
+from .globals import _request_ctx_stack
+from typing import Any
+
+class UnexpectedUnicodeError(AssertionError, UnicodeError): ...
+
+class DebugFilesKeyError(KeyError, AssertionError):
+    msg: Any = ...
+    def __init__(self, request: Any, key: Any) -> None: ...
+
+class FormDataRoutingRedirect(AssertionError):
+    def __init__(self, request: Any) -> None: ...
+
+def attach_enctype_error_multidict(request: Any): ...
+def explain_template_loading_attempts(app: Any, template: Any, attempts: Any) -> None: ...
+def explain_ignored_app_run() -> None: ...

third_party/2and3/flask/globals.pyi

@@ -0,0 +1,18 @@
+# Stubs for flask.globals (Python 3.6)
+#
+# NOTE: This dynamically typed stub was automatically generated by stubgen.
+
+from .app import Flask
+from .wrappers import Request
+from typing import Any
+from werkzeug.local import LocalStack
+
+class _FlaskLocalProxy(Flask):
+    def _get_current_object(self) -> Flask: ...
+
+_request_ctx_stack: LocalStack
+_app_ctx_stack: LocalStack
+current_app: _FlaskLocalProxy
+request: Request
+session: Any
+g: Any

third_party/2and3/flask/helpers.pyi

@@ -0,0 +1,48 @@
+# Stubs for flask.helpers (Python 3.6)
+#
+# NOTE: This dynamically typed stub was automatically generated by stubgen.
+
+from .globals import _app_ctx_stack, _request_ctx_stack, current_app, request, session
+from .signals import message_flashed
+from typing import Any, Optional
+
+def get_env(): ...
+def get_debug_flag(): ...
+def get_load_dotenv(default: bool = ...): ...
+def stream_with_context(generator_or_function: Any): ...
+def make_response(*args: Any): ...
+def url_for(endpoint: Any, **values: Any): ...
+def get_template_attribute(template_name: Any, attribute: Any): ...
+def flash(message: Any, category: str = ...) -> None: ...
+def get_flashed_messages(with_categories: bool = ..., category_filter: Any = ...): ...
+def send_file(filename_or_fp: Any, mimetype: Optional[Any] = ..., as_attachment: bool = ..., attachment_filename: Optional[Any] = ..., add_etags: bool = ..., cache_timeout: Optional[Any] = ..., conditional: bool = ..., last_modified: Optional[Any] = ...): ...
+def safe_join(directory: Any, *pathnames: Any): ...
+def send_from_directory(directory: Any, filename: Any, **options: Any): ...
+def get_root_path(import_name: Any): ...
+def find_package(import_name: Any): ...
+
+class locked_cached_property:
+    __name__: Any = ...
+    __module__: Any = ...
+    __doc__: Any = ...
+    func: Any = ...
+    lock: Any = ...
+    def __init__(self, func: Any, name: Optional[Any] = ..., doc: Optional[Any] = ...) -> None: ...
+    def __get__(self, obj: Any, type: Optional[Any] = ...): ...
+
+class _PackageBoundObject:
+    import_name: Any = ...
+    template_folder: Any = ...
+    root_path: Any = ...
+    def __init__(self, import_name: Any, template_folder: Optional[Any] = ..., root_path: Optional[Any] = ...) -> None: ...
+    static_folder: Any = ...
+    static_url_path: Any = ...
+    @property
+    def has_static_folder(self): ...
+    def jinja_loader(self): ...
+    def get_send_file_max_age(self, filename: Any): ...
+    def send_static_file(self, filename: Any): ...
+    def open_resource(self, resource: Any, mode: str = ...): ...
+
+def total_seconds(td: Any): ...
+def is_ip(value: Any): ...

third_party/2and3/flask/json/__init__.pyi

@@ -0,0 +1,19 @@
+# Stubs for flask.json (Python 3.6)
+#
+# NOTE: This dynamically typed stub was automatically generated by stubgen.
+
+import json as _json
+from typing import Any
+
+class JSONEncoder(_json.JSONEncoder):
+    def default(self, o: Any): ...
+
+class JSONDecoder(_json.JSONDecoder): ...
+
+def dumps(obj: Any, **kwargs: Any): ...
+def dump(obj: Any, fp: Any, **kwargs: Any) -> None: ...
+def loads(s: Any, **kwargs: Any): ...
+def load(fp: Any, **kwargs: Any): ...
+def htmlsafe_dumps(obj: Any, **kwargs: Any): ...
+def htmlsafe_dump(obj: Any, fp: Any, **kwargs: Any) -> None: ...
+def jsonify(*args: Any, **kwargs: Any): ...

third_party/2and3/flask/json/tag.pyi

@@ -0,0 +1,71 @@
+# Stubs for flask.json.tag (Python 3.6)
+#
+# NOTE: This dynamically typed stub was automatically generated by stubgen.
+
+from typing import Any, Optional
+
+class JSONTag:
+    key: Any = ...
+    serializer: Any = ...
+    def __init__(self, serializer: Any) -> None: ...
+    def check(self, value: Any) -> None: ...
+    def to_json(self, value: Any) -> None: ...
+    def to_python(self, value: Any) -> None: ...
+    def tag(self, value: Any): ...
+
+class TagDict(JSONTag):
+    key: str = ...
+    def check(self, value: Any): ...
+    def to_json(self, value: Any): ...
+    def to_python(self, value: Any): ...
+
+class PassDict(JSONTag):
+    def check(self, value: Any): ...
+    def to_json(self, value: Any): ...
+    tag: Any = ...
+
+class TagTuple(JSONTag):
+    key: str = ...
+    def check(self, value: Any): ...
+    def to_json(self, value: Any): ...
+    def to_python(self, value: Any): ...
+
+class PassList(JSONTag):
+    def check(self, value: Any): ...
+    def to_json(self, value: Any): ...
+    tag: Any = ...
+
+class TagBytes(JSONTag):
+    key: str = ...
+    def check(self, value: Any): ...
+    def to_json(self, value: Any): ...
+    def to_python(self, value: Any): ...
+
+class TagMarkup(JSONTag):
+    key: str = ...
+    def check(self, value: Any): ...
+    def to_json(self, value: Any): ...
+    def to_python(self, value: Any): ...
+
+class TagUUID(JSONTag):
+    key: str = ...
+    def check(self, value: Any): ...
+    def to_json(self, value: Any): ...
+    def to_python(self, value: Any): ...
+
+class TagDateTime(JSONTag):
+    key: str = ...
+    def check(self, value: Any): ...
+    def to_json(self, value: Any): ...
+    def to_python(self, value: Any): ...
+
+class TaggedJSONSerializer:
+    default_tags: Any = ...
+    tags: Any = ...
+    order: Any = ...
+    def __init__(self) -> None: ...
+    def register(self, tag_class: Any, force: bool = ..., index: Optional[Any] = ...) -> None: ...
+    def tag(self, value: Any): ...
+    def untag(self, value: Any): ...
+    def dumps(self, value: Any): ...
+    def loads(self, value: Any): ...

third_party/2and3/flask/logging.pyi

@@ -0,0 +1,13 @@
+# Stubs for flask.logging (Python 3.6)
+#
+# NOTE: This dynamically typed stub was automatically generated by stubgen.
+
+from .globals import request
+from typing import Any
+
+def wsgi_errors_stream(): ...
+def has_level_handler(logger: Any): ...
+
+default_handler: Any
+
+def create_logger(app: Any): ...

third_party/2and3/flask/sessions.pyi

@@ -0,0 +1,60 @@
+# Stubs for flask.sessions (Python 3.6)
+#
+# NOTE: This dynamically typed stub was automatically generated by stubgen.
+
+from abc import ABCMeta
+from typing import Any, MutableMapping, Optional
+from werkzeug.datastructures import CallbackDict
+
+class SessionMixin(MutableMapping, metaclass=ABCMeta):
+    @property
+    def permanent(self): ...
+    @permanent.setter
+    def permanent(self, value: Any) -> None: ...
+    new: bool = ...
+    modified: bool = ...
+    accessed: bool = ...
+
+class SecureCookieSession(CallbackDict, SessionMixin):
+    modified: bool = ...
+    accessed: bool = ...
+    def __init__(self, initial: Optional[Any] = ...) -> None: ...
+    def __getitem__(self, key: Any): ...
+    def get(self, key: Any, default: Optional[Any] = ...): ...
+    def setdefault(self, key: Any, default: Optional[Any] = ...): ...
+
+class NullSession(SecureCookieSession):
+    __setitem__: Any = ...
+    __delitem__: Any = ...
+    clear: Any = ...
+    pop: Any = ...
+    popitem: Any = ...
+    update: Any = ...
+    setdefault: Any = ...
+
+class SessionInterface:
+    null_session_class: Any = ...
+    pickle_based: bool = ...
+    def make_null_session(self, app: Any): ...
+    def is_null_session(self, obj: Any): ...
+    def get_cookie_domain(self, app: Any): ...
+    def get_cookie_path(self, app: Any): ...
+    def get_cookie_httponly(self, app: Any): ...
+    def get_cookie_secure(self, app: Any): ...
+    def get_cookie_samesite(self, app: Any): ...
+    def get_expiration_time(self, app: Any, session: Any): ...
+    def should_set_cookie(self, app: Any, session: Any): ...
+    def open_session(self, app: Any, request: Any) -> None: ...
+    def save_session(self, app: Any, session: Any, response: Any) -> None: ...
+
+session_json_serializer: Any
+
+class SecureCookieSessionInterface(SessionInterface):
+    salt: str = ...
+    digest_method: Any = ...
+    key_derivation: str = ...
+    serializer: Any = ...
+    session_class: Any = ...
+    def get_signing_serializer(self, app: Any): ...
+    def open_session(self, app: Any, request: Any): ...
+    def save_session(self, app: Any, session: Any, response: Any): ...

third_party/2and3/flask/signals.pyi

@@ -0,0 +1,33 @@
+# Stubs for flask.signals (Python 3.6)
+#
+# NOTE: This dynamically typed stub was automatically generated by stubgen.
+
+from typing import Any, Optional
+
+signals_available: bool
+
+class Namespace:
+    def signal(self, name: Any, doc: Optional[Any] = ...): ...
+
+class _FakeSignal:
+    name: Any = ...
+    __doc__: Any = ...
+    def __init__(self, name: Any, doc: Optional[Any] = ...) -> None: ...
+    send: Any = ...
+    connect: Any = ...
+    disconnect: Any = ...
+    has_receivers_for: Any = ...
+    receivers_for: Any = ...
+    temporarily_connected_to: Any = ...
+    connected_to: Any = ...
+
+template_rendered: Any
+before_render_template: Any
+request_started: Any
+request_finished: Any
+request_tearing_down: Any
+got_request_exception: Any
+appcontext_tearing_down: Any
+appcontext_pushed: Any
+appcontext_popped: Any
+message_flashed: Any

third_party/2and3/flask/templating.pyi

@@ -0,0 +1,21 @@
+# Stubs for flask.templating (Python 3.6)
+#
+# NOTE: This dynamically typed stub was automatically generated by stubgen.
+
+from .globals import _app_ctx_stack, _request_ctx_stack
+from .signals import before_render_template, template_rendered
+from jinja2 import BaseLoader, Environment as BaseEnvironment
+from typing import Any
+
+class Environment(BaseEnvironment):
+    app: Any = ...
+    def __init__(self, app: Any, **options: Any) -> None: ...
+
+class DispatchingJinjaLoader(BaseLoader):
+    app: Any = ...
+    def __init__(self, app: Any) -> None: ...
+    def get_source(self, environment: Any, template: Any): ...
+    def list_templates(self): ...
+
+def render_template(template_name_or_list: Any, **context: Any): ...
+def render_template_string(source: Any, **context: Any): ...

third_party/2and3/flask/testing.pyi

@@ -0,0 +1,34 @@
+# Stubs for flask.testing (Python 3.6)
+#
+# NOTE: This dynamically typed stub was automatically generated by stubgen.
+
+from click import BaseCommand
+from click.testing import CliRunner, Result
+from typing import Any, IO, Iterable, Mapping, Optional, Union
+from werkzeug.test import Client
+
+def make_test_environ_builder(app: Any, path: str = ..., base_url: Optional[Any] = ..., subdomain: Optional[Any] = ..., url_scheme: Optional[Any] = ..., *args: Any, **kwargs: Any): ...
+
+class FlaskClient(Client):
+    preserve_context: bool = ...
+    environ_base: Any = ...
+    def __init__(self, *args: Any, **kwargs: Any) -> None: ...
+    def session_transaction(self, *args: Any, **kwargs: Any) -> None: ...
+    def open(self, *args: Any, **kwargs: Any): ...
+    def __enter__(self): ...
+    def __exit__(self, exc_type: Any, exc_value: Any, tb: Any) -> None: ...
+
+class FlaskCliRunner(CliRunner):
+    app: Any = ...
+    def __init__(self, app: Any, **kwargs: Any) -> None: ...
+    def invoke(
+        self,
+        cli: Optional[BaseCommand] = ...,
+        args: Optional[Union[str, Iterable[str]]] = ...,
+        input: Optional[IO] = ...,
+        env: Optional[Mapping[str, str]] = ...,
+        catch_exceptions: bool = ...,
+        color: bool = ...,
+        **extra: Any,
+    ) -> Result:
+        ...

third_party/2and3/flask/views.pyi

@@ -0,0 +1,22 @@
+# Stubs for flask.views (Python 3.6)
+#
+# NOTE: This dynamically typed stub was automatically generated by stubgen.
+
+from .globals import request
+from typing import Any
+
+http_method_funcs: Any
+
+class View:
+    methods: Any = ...
+    provide_automatic_options: Any = ...
+    decorators: Any = ...
+    def dispatch_request(self) -> None: ...
+    @classmethod
+    def as_view(cls, name: Any, *class_args: Any, **class_kwargs: Any): ...
+
+class MethodViewType(type):
+    def __init__(cls, name: Any, bases: Any, d: Any) -> None: ...
+
+class MethodView(View, metaclass=MethodViewType):
+    def dispatch_request(self, *args: Any, **kwargs: Any): ...

third_party/2and3/flask/wrappers.pyi

@@ -0,0 +1,35 @@
+# Stubs for flask.wrappers (Python 3.6)
+#
+# NOTE: This dynamically typed stub was automatically generated by stubgen.
+
+from typing import Any, Dict, Optional
+from werkzeug.exceptions import HTTPException
+from werkzeug.routing import Rule
+from werkzeug.wrappers import Request as RequestBase, Response as ResponseBase
+
+class JSONMixin:
+    @property
+    def is_json(self) -> bool: ...
+    @property
+    def json(self): ...
+    def get_json(self, force: bool = ..., silent: bool = ..., cache: bool = ...): ...
+    def on_json_loading_failed(self, e: Any) -> None: ...
+
+class Request(RequestBase, JSONMixin):
+    url_rule: Optional[Rule] = ...
+    view_args: Dict[str, Any] = ...
+    routing_exception: Optional[HTTPException] = ...
+    # Request is making the max_content_length readonly, where it was not the
+    # case in its supertype.
+    # We would require something like https://github.com/python/typing/issues/241
+    @property
+    def max_content_length(self) -> Optional[int]: ...  # type: ignore
+    @property
+    def endpoint(self) -> Optional[str]: ...
+    @property
+    def blueprint(self) -> Optional[str]: ...
+
+class Response(ResponseBase, JSONMixin):
+    default_mimetype: str = ...
+    @property
+    def max_cookie_size(self) -> int: ...

third_party/2and3/werkzeug/utils.pyi

@@ -1,5 +1,6 @@
 from typing import Any, Optional
 from werkzeug._internal import _DictAccessorProperty
+from werkzeug.wrappers import Response
 
 class cached_property(property):
     __name__ = ...  # type: Any
@@ -30,7 +31,7 @@ def format_string(string, context): ...
 def secure_filename(filename): ...
 def escape(s, quote: Optional[Any] = ...): ...
 def unescape(s): ...
-def redirect(location, code: int = ..., Response: Optional[Any] = ...): ...
+def redirect(location, code: int = ..., Response: Optional[Any] = ...) -> Response: ...
 def append_slash_redirect(environ, code: int = ...): ...
 def import_string(import_name, silent: bool = ...): ...
 def find_modules(import_path, include_packages: bool = ..., recursive: bool = ...): ...

third_party/2and3/werkzeug/wrappers.pyi

@@ -14,7 +14,7 @@ from .datastructures import (
 class BaseRequest:
     charset = ...  # type: str
     encoding_errors = ...  # type: str
-    max_content_length = ...  # type: int
+    max_content_length = ...  # type: Optional[int]
     max_form_memory_size = ...  # type: int
     parameter_storage_class = ...  # type: Type
     list_storage_class = ...  # type: Type
@@ -60,7 +60,8 @@ class BaseRequest:
     host = ...  # type: Text
     query_string = ...  # type: bytes
     method = ...  # type: Text
-    def access_route(self): ...
+    @property
+    def access_route(self) -> Sequence[str]: ...
     @property
     def remote_addr(self) -> str: ...
     remote_user = ...  # type: Text
@@ -71,6 +72,11 @@ class BaseRequest:
     is_multiprocess = ...  # type: bool
     is_run_once = ...  # type: bool
 
+    # These are not preset at runtime but we add them since monkeypatching this
+    # class is quite common.
+    def __setattr__(self, name: str, value: Any): ...
+    def __getattr__(self, name: str): ...
+
 _OnCloseT = TypeVar('_OnCloseT', bound=Callable[[], Any])
 _SelfT = TypeVar('_SelfT', bound=BaseResponse)