some stubs

.travis.yml

@@ -15,7 +15,7 @@ jobs:
   - name: "Lint with black"
     python: 3.7
     script: |
-      black --check --line-length=130 django-stubs/ django-stubs-generated/
+      black --check --line-length=120 django-stubs/ django-stubs-generated/
 
 before_install: |
   # Upgrade pip, setuptools, and wheel

django-stubs/conf/urls/__init__.pyi

@@ -21,4 +21,6 @@ def url(
     regex: str, view: Tuple[URLConf, Optional[str], Optional[str]], kwargs: Dict[str, Any] = None, name: str = None
 ) -> RegexURLResolver: ...
 @overload
-def url(regex: str, view: List[Union[URLConf, str]], kwargs: Dict[str, Any] = None, name: str = None) -> RegexURLResolver: ...
+def url(
+    regex: str, view: List[Union[URLConf, str]], kwargs: Dict[str, Any] = None, name: str = None
+) -> RegexURLResolver: ...

django-stubs/contrib/postgres/fields/array.pyi

@@ -1,4 +1,4 @@
-from typing import Any, Dict, List, Optional, Tuple, Union, TypeVar, Generic
+from typing import Any, Dict, List, Optional, Tuple, Union, TypeVar, Generic, Sequence
 
 from django.db.models.fields import Field
 
@@ -31,4 +31,5 @@ class ArrayField(CheckFieldDefaultMixin, Field, Generic[_T]):
     def validate(self, value: Any, model_instance: Any) -> None: ...
     def run_validators(self, value: Any) -> None: ...
     def formfield(self, **kwargs: Any): ...
+    def __set__(self, instance, value: Sequence[_T]): ...
     def __get__(self, instance, owner) -> List[_T]: ...

django-stubs/core/files/base.pyi

@@ -1,27 +1,34 @@
-# Stubs for django.core.files.base (Python 3.5)
+from io import StringIO
+from typing import Any, Iterator, Optional, Union
 
-from typing import Any, Iterable, Iterator, Optional, Sized, Union
 from django.core.files.utils import FileProxyMixin
 
-class File(FileProxyMixin, Sized, Iterable[bytes]):
-    DEFAULT_CHUNK_SIZE = ...  # type: int
-    file = ...  # type: Any
-    name: Optional[str] = ...  # type: ignore
-    mode = ...  # type: str
-    size = ...  # type: int
-    def __init__(self, file: Any, name: str = None) -> None: ...
-    @property
-    def closed(self) -> bool: ...
-    def chunks(self, chunk_size: int = None) -> Iterator[bytes]: ...
-    def multiple_chunks(self, chunk_size: int = None) -> bool: ...
-    def __enter__(self) -> "File": ...
-    def __exit__(self, t: type = None, value: BaseException = None, traceback: Any = None) -> bool: ...
-    def open(self, mode: str = None) -> None: ...
+class File(FileProxyMixin):
+    DEFAULT_CHUNK_SIZE: Any = ...
+    file: StringIO = ...
+    name: Optional[str] = ...
+    mode: str = ...
+    def __init__(self, file: Any, name: Optional[str] = ...) -> None: ...
+    def __bool__(self) -> bool: ...
+    def __len__(self) -> int: ...
+    def size(self) -> int: ...
+    def chunks(self, chunk_size: Optional[int] = ...) -> Iterator[Union[bytes, bytearray]]: ...
+    def multiple_chunks(self, chunk_size: Optional[Any] = ...): ...
+    def __iter__(self) -> Iterator[Union[bytes, str]]: ...
+    def __enter__(self) -> File: ...
+    def __exit__(self, exc_type: None, exc_value: None, tb: None) -> None: ...
+    def open(self, mode: Optional[str] = ...) -> File: ...
     def close(self) -> None: ...
 
 class ContentFile(File):
-    def __init__(self, content: Union[str, bytes], name: Optional[str] = None) -> None: ...
+    file: StringIO
+    size: Any = ...
+    def __init__(self, content: Union[bytes, str], name: Optional[str] = ...) -> None: ...
+    def __bool__(self) -> bool: ...
+    def open(self, mode: Optional[str] = ...) -> ContentFile: ...
+    def close(self) -> None: ...
+    def write(self, data: str) -> int: ...
 
-def endswith_cr(line: Union[str, bytes]) -> bool: ...
-def endswith_lf(line: Union[str, bytes]) -> bool: ...
-def equals_lf(line: Union[str, bytes]) -> bool: ...
+def endswith_cr(line: bytes) -> bool: ...
+def endswith_lf(line: Union[bytes, str]) -> bool: ...
+def equals_lf(line: bytes) -> bool: ...

django-stubs/core/files/utils.pyi

@@ -1,7 +1,23 @@
-from typing import BinaryIO, Any, Optional, Tuple, Union
+from typing import Any
 
-class FileProxyMixin(BinaryIO):
-
-    newlines = ...  # type: Union[str, Tuple[str, ...], None]
-    softspace = ...  # type: bool
-    def readinto(self, b: Any) -> Optional[int]: ...
+class FileProxyMixin:
+    encoding: Any = ...
+    fileno: Any = ...
+    flush: Any = ...
+    isatty: Any = ...
+    newlines: Any = ...
+    read: Any = ...
+    readinto: Any = ...
+    readline: Any = ...
+    readlines: Any = ...
+    seek: Any = ...
+    tell: Any = ...
+    truncate: Any = ...
+    write: Any = ...
+    writelines: Any = ...
+    @property
+    def closed(self) -> bool: ...
+    def readable(self) -> bool: ...
+    def writable(self) -> bool: ...
+    def seekable(self) -> bool: ...
+    def __iter__(self): ...

django-stubs/db/models/__init__.pyi

@@ -23,10 +23,23 @@ from .deletion import CASCADE as CASCADE, SET_DEFAULT as SET_DEFAULT, SET_NULL a
 
 from .query import QuerySet as QuerySet, RawQuerySet as RawQuerySet
 
-from .query_utils import Q as Q
+from .query_utils import Q as Q, FilteredRelation as FilteredRelation
 
 from .lookups import Lookup as Lookup
 
-from .expressions import F as F, Subquery as Subquery, Exists as Exists, OrderBy as OrderBy, OuterRef as OuterRef
+from .expressions import (
+    F as F,
+    Expression as Expression,
+    Subquery as Subquery,
+    Exists as Exists,
+    OrderBy as OrderBy,
+    OuterRef as OuterRef,
+    Case as Case,
+    When as When,
+    RawSQL as RawSQL,
+    Value as Value,
+)
 
 from .manager import BaseManager as BaseManager, Manager as Manager
+
+from .aggregates import Count as Count, Aggregate as Aggregate

django-stubs/db/models/aggregates.pyi

@@ -0,0 +1,51 @@
+from typing import Any, Optional
+
+from django.db.models.expressions import Func
+from django.db.models.query_utils import Q
+
+class Aggregate(Func):
+    name: Any = ...
+    filter_template: str = ...
+    window_compatible: bool = ...
+    filter: Any = ...
+    def __init__(self, *args: Any, filter: Optional[Any] = ..., **kwargs: Any) -> None: ...
+
+class Avg(Aggregate):
+    filter: None
+    function: str = ...
+    name: str = ...
+
+class Count(Aggregate):
+    filter: None
+    function: str = ...
+    name: str = ...
+    template: str = ...
+    output_field: Any = ...
+    def __init__(self, expression: str, distinct: bool = ..., filter: Optional[Q] = ..., **extra: Any) -> None: ...
+
+class Max(Aggregate):
+    filter: None
+    function: str = ...
+    name: str = ...
+
+class Min(Aggregate):
+    filter: None
+    function: str = ...
+    name: str = ...
+
+class StdDev(Aggregate):
+    filter: None
+    name: str = ...
+    output_field: Any = ...
+    function: str = ...
+
+class Sum(Aggregate):
+    filter: None
+    function: str = ...
+    name: str = ...
+
+class Variance(Aggregate):
+    filter: None
+    name: str = ...
+    output_field: Any = ...
+    function: str = ...

django-stubs/db/models/expressions.pyi

@@ -5,6 +5,7 @@ from typing import Any, Callable, Dict, Iterator, List, Optional, Set, Tuple, Ty
 from django.db.models import QuerySet
 from django.db.models.fields import Field
 from django.db.models.lookups import Lookup
+from django.db.models.sql import Query
 from django.db.models.sql.compiler import SQLCompiler
 
 class SQLiteNumericMixin:
@@ -136,3 +137,49 @@ class OrderBy(BaseExpression):
     def __init__(
         self, expression: Combinable, descending: bool = ..., nulls_first: bool = ..., nulls_last: bool = ...
     ) -> None: ...
+
+class Value(Expression):
+    value: Any = ...
+    def __init__(self, value: Any, output_field: Optional[Field] = ...) -> None: ...
+
+class RawSQL(Expression):
+    output_field: Field
+    params: List[Any]
+    sql: str
+    def __init__(self, sql: str, params: Union[List[int], List[str], Tuple], output_field: None = ...) -> None: ...
+
+class Func(SQLiteNumericMixin, Expression):
+    function: Any = ...
+    template: str = ...
+    arg_joiner: str = ...
+    arity: Any = ...
+    source_expressions: Any = ...
+    extra: Any = ...
+    def __init__(self, *expressions: Any, output_field: Optional[Any] = ..., **extra: Any) -> None: ...
+    def get_source_expressions(self) -> List[Combinable]: ...
+    def set_source_expressions(self, exprs: List[Expression]) -> None: ...
+    def resolve_expression(
+        self,
+        query: Query = ...,
+        allow_joins: bool = ...,
+        reuse: Optional[Set[Any]] = ...,
+        summarize: bool = ...,
+        for_save: bool = ...,
+    ) -> Func: ...
+    def copy(self) -> Func: ...
+
+class When(Expression):
+    template: str = ...
+    condition: Any = ...
+    result: Any = ...
+    def __init__(self, condition: Any = ..., then: Any = ..., **lookups: Any) -> None: ...
+
+class Case(Expression):
+    template: str = ...
+    case_joiner: str = ...
+    cases: Any = ...
+    default: Any = ...
+    extra: Any = ...
+    def __init__(
+        self, *cases: Any, default: Optional[Any] = ..., output_field: Optional[Any] = ..., **extra: Any
+    ) -> None: ...

django-stubs/db/models/fields/__init__.pyi

@@ -17,14 +17,17 @@ class AutoField(Field):
 
 class CharField(Field):
     def __init__(self, max_length: int, **kwargs): ...
+    def __set__(self, instance, value: str) -> None: ...
     def __get__(self, instance, owner) -> str: ...
 
 class SlugField(CharField): ...
 
 class TextField(Field):
+    def __set__(self, instance, value: str) -> None: ...
     def __get__(self, instance, owner) -> str: ...
 
 class BooleanField(Field):
+    def __set__(self, instance, value: bool) -> None: ...
     def __get__(self, instance, owner) -> bool: ...
 
 class FileField(Field): ...

django-stubs/db/models/fields/mixins.pyi

@@ -0,0 +1,12 @@
+from typing import Any, Optional
+
+from django.db.models.base import Model
+
+NOT_PROVIDED: Any
+
+class FieldCacheMixin:
+    def get_cache_name(self) -> None: ...
+    def get_cached_value(self, instance: Model, default: Any = ...) -> Optional[Model]: ...
+    def is_cached(self, instance: Model) -> bool: ...
+    def set_cached_value(self, instance: Model, value: Optional[Model]) -> None: ...
+    def delete_cached_value(self, instance: Model) -> None: ...

django-stubs/db/models/fields/related.pyi

@@ -1,18 +1,82 @@
-from typing import Type, Union, TypeVar, Any, Generic
+from typing import Type, Union, TypeVar, Any, Generic, List, Optional, Dict, Callable, Tuple, Sequence
+from uuid import UUID
 
 from django.db import models
-from django.db.models import Field
+from django.db.models import Field, Model, QuerySet
+from django.db.models.fields.mixins import FieldCacheMixin
+from django.db.models.query_utils import PathInfo, Q
 
 _T = TypeVar("_T", bound=models.Model)
 
-class ForeignKey(Field, Generic[_T]):
+class RelatedField(FieldCacheMixin, Field):
+    one_to_many: bool = ...
+    one_to_one: bool = ...
+    many_to_many: bool = ...
+    many_to_one: bool = ...
+    def related_model(self) -> Union[Type[Model], str]: ...
+    def check(self, **kwargs: Any) -> List[Any]: ...
+    opts: Any = ...
+    def deconstruct(self) -> Tuple[Optional[str], str, List[Any], Dict[str, str]]: ...
+    def get_forward_related_filter(self, obj: Model) -> Dict[str, Union[int, UUID]]: ...
+    def get_reverse_related_filter(self, obj: Model) -> Q: ...
+    @property
+    def swappable_setting(self) -> Optional[str]: ...
+    name: Any = ...
+    verbose_name: Any = ...
+    def set_attributes_from_rel(self) -> None: ...
+    def do_related_class(self, other: Type[Model], cls: Type[Model]) -> None: ...
+    def get_limit_choices_to(self) -> Dict[str, int]: ...
+    def formfield(self, **kwargs: Any) -> Field: ...
+    def related_query_name(self) -> str: ...
+    @property
+    def target_field(self) -> Field: ...
+
+class ForeignKey(RelatedField, Generic[_T]):
     def __init__(self, to: Union[Type[_T], str], on_delete: Any, related_name: str = ..., **kwargs): ...
     def __get__(self, instance, owner) -> _T: ...
 
-class OneToOneField(Field, Generic[_T]):
+class OneToOneField(RelatedField, Generic[_T]):
     def __init__(self, to: Union[Type[_T], str], on_delete: Any, related_name: str = ..., **kwargs): ...
     def __get__(self, instance, owner) -> _T: ...
 
-class ManyToManyField(Field, Generic[_T]):
-    def __init__(self, to: Union[Type[_T], str], on_delete: Any, related_name: str = ..., **kwargs): ...
-    def __get__(self, instance, owner) -> _T: ...
+class ManyToManyField(RelatedField, Generic[_T]):
+    many_to_many: bool = ...
+    many_to_one: bool = ...
+    one_to_many: bool = ...
+    one_to_one: bool = ...
+    rel_class: Any = ...
+    description: Any = ...
+    has_null_arg: Any = ...
+    db_table: Any = ...
+    swappable: Any = ...
+    def __init__(
+        self,
+        to: Union[Type[_T], str],
+        related_name: Optional[str] = ...,
+        related_query_name: Optional[str] = ...,
+        limit_choices_to: Optional[Callable] = ...,
+        symmetrical: Optional[bool] = ...,
+        through: Optional[str] = ...,
+        through_fields: Optional[Tuple[str, str]] = ...,
+        db_constraint: bool = ...,
+        db_table: None = ...,
+        swappable: bool = ...,
+        **kwargs: Any
+    ) -> None: ...
+    def __set__(self, instance, value: Sequence[_T]) -> None: ...
+    def __get__(self, instance, owner) -> QuerySet[_T]: ...
+    def check(self, **kwargs: Any) -> List[Any]: ...
+    def deconstruct(self) -> Tuple[Optional[str], str, List[Any], Dict[str, str]]: ...
+    def get_path_info(self, filtered_relation: None = ...) -> List[PathInfo]: ...
+    def get_reverse_path_info(self, filtered_relation: None = ...) -> List[PathInfo]: ...
+    m2m_db_table: Any = ...
+    m2m_column_name: Any = ...
+    m2m_reverse_name: Any = ...
+    m2m_field_name: Any = ...
+    m2m_reverse_field_name: Any = ...
+    m2m_target_field_name: Any = ...
+    m2m_reverse_target_field_name: Any = ...
+    def contribute_to_related_class(self, cls: Type[Model], related: RelatedField) -> None: ...
+    def set_attributes_from_rel(self) -> None: ...
+    def value_from_object(self, obj: Model) -> List[Model]: ...
+    def save_form_data(self, instance: Model, data: QuerySet) -> None: ...

django-stubs/db/models/manager.pyi

@@ -49,7 +49,9 @@ class Manager(Generic[_T]):
     def all(self) -> QuerySet[_T]: ...
     def filter(self, *args: Any, **kwargs: Any) -> QuerySet[_T]: ...
     def exclude(self, *args: Any, **kwargs: Any) -> QuerySet[_T]: ...
-    def complex_filter(self, filter_obj: Union[Dict[str, datetime], Dict[str, QuerySet], Q, MagicMock]) -> QuerySet[_T]: ...
+    def complex_filter(
+        self, filter_obj: Union[Dict[str, datetime], Dict[str, QuerySet], Q, MagicMock]
+    ) -> QuerySet[_T]: ...
     def union(self, *other_qs: Any, all: bool = ...) -> QuerySet[_T]: ...
     def intersection(self, *other_qs: Any) -> QuerySet[_T]: ...
     def difference(self, *other_qs: Any) -> QuerySet[_T]: ...

django-stubs/db/models/query.pyi

@@ -1,12 +1,26 @@
 from collections import OrderedDict
 from datetime import date, datetime
-from typing import Generic, TypeVar, Optional, Any, Type, Dict, Union, overload, List, Iterator, Tuple, Callable
+from typing import (
+    Generic,
+    TypeVar,
+    Optional,
+    Any,
+    Type,
+    Dict,
+    Union,
+    overload,
+    List,
+    Iterator,
+    Tuple,
+    Callable,
+    Sequence,
+)
 
 from django.db import models
 
 _T = TypeVar("_T", bound=models.Model)
 
-class QuerySet(Generic[_T]):
+class QuerySet(Sequence[_T]):
     def __init__(
         self,
         model: Optional[Type[models.Model]] = ...,
@@ -20,19 +34,20 @@ class QuerySet(Generic[_T]):
     def __iter__(self) -> Iterator[_T]: ...
     def __bool__(self) -> bool: ...
     @overload
-    def __getitem__(self, k: slice) -> QuerySet[_T]: ...
-    @overload
     def __getitem__(self, k: int) -> _T: ...
     @overload
     def __getitem__(self, k: str) -> Any: ...
+    @overload
+    def __getitem__(self, k: slice) -> QuerySet[_T]: ...
     def __and__(self, other: QuerySet) -> QuerySet: ...
     def __or__(self, other: QuerySet) -> QuerySet: ...
     def iterator(self, chunk_size: int = ...) -> Iterator[_T]: ...
     def aggregate(self, *args: Any, **kwargs: Any) -> Dict[str, Optional[Union[datetime, float]]]: ...
-    def count(self) -> int: ...
     def get(self, *args: Any, **kwargs: Any) -> _T: ...
     def create(self, **kwargs: Any) -> _T: ...
-    def bulk_create(self, objs: Union[Iterator[Any], List[models.Model]], batch_size: Optional[int] = ...) -> List[_T]: ...
+    def bulk_create(
+        self, objs: Union[Iterator[Any], List[models.Model]], batch_size: Optional[int] = ...
+    ) -> List[_T]: ...
     def get_or_create(
         self, defaults: Optional[Union[Dict[str, date], Dict[str, models.Model]]] = ..., **kwargs: Any
     ) -> Tuple[_T, bool]: ...
@@ -43,7 +58,7 @@ class QuerySet(Generic[_T]):
     ) -> Tuple[_T, bool]: ...
     def earliest(self, *fields: Any, field_name: Optional[Any] = ...) -> _T: ...
     def latest(self, *fields: Any, field_name: Optional[Any] = ...) -> _T: ...
-    def first(self) -> Optional[Union[Dict[str, int], _T]]: ...
+    def first(self) -> Optional[_T]: ...
     def last(self) -> Optional[_T]: ...
     def in_bulk(
         self, id_list: Any = ..., *, field_name: str = ...
@@ -56,7 +71,7 @@ class QuerySet(Generic[_T]):
         self, raw_query: str, params: Any = ..., translations: Optional[Dict[str, str]] = ..., using: None = ...
     ) -> RawQuerySet: ...
     def values(self, *fields: Any, **expressions: Any) -> QuerySet: ...
-    def values_list(self, *fields: Any, flat: bool = ..., named: bool = ...) -> QuerySet: ...
+    def values_list(self, *fields: Any, flat: bool = ..., named: bool = ...) -> List[Any]: ...
     def dates(self, field_name: str, kind: str, order: str = ...) -> QuerySet: ...
     def datetimes(self, field_name: str, kind: str, order: str = ..., tzinfo: None = ...) -> QuerySet: ...
     def none(self) -> QuerySet[_T]: ...

django-stubs/db/models/query_utils.pyi

@@ -1,8 +1,84 @@
-class RegisterLookupMixin:
-    pass
+from collections import OrderedDict, namedtuple
+from typing import Any, Dict, Iterator, List, Optional, Set, Tuple, Type, Union
 
-class Q(object):
-    def __init__(self, *args, **kwargs) -> None: ...
-    def __or__(self, other: Q) -> Q: ...
-    def __and__(self, other: Q) -> Q: ...
+from django.db.models.base import Model
+from django.db.models.expressions import Expression
+from django.db.models.fields import Field
+from django.db.models.fields.mixins import FieldCacheMixin
+from django.db.models.sql.compiler import SQLCompiler
+from django.db.models.sql.query import Query
+from django.db.models.sql.where import WhereNode
+from django.utils import tree
+
+PathInfo = namedtuple("PathInfo", "from_opts to_opts target_fields join_field m2m direct filtered_relation")
+
+class InvalidQuery(Exception): ...
+
+def subclasses(cls: Type[RegisterLookupMixin]) -> Iterator[Type[RegisterLookupMixin]]: ...
+
+class QueryWrapper:
+    contains_aggregate: bool = ...
+    data: Tuple[str, List[Any]] = ...
+    def __init__(self, sql: str, params: List[Any]) -> None: ...
+    def as_sql(self, compiler: SQLCompiler = ..., connection: Any = ...) -> Tuple[str, List[Any]]: ...
+
+class Q(tree.Node):
+    children: Union[List[Dict[str, str]], List[Tuple[str, Any]], List[Q]]
+    connector: str
+    negated: bool
+    AND: str = ...
+    OR: str = ...
+    default: Any = ...
+    conditional: bool = ...
+    def __init__(self, *args: Any, **kwargs: Any) -> None: ...
+    def __or__(self, other: Any) -> Q: ...
+    def __and__(self, other: Any) -> Q: ...
     def __invert__(self) -> Q: ...
+    def resolve_expression(
+        self,
+        query: Query = ...,
+        allow_joins: bool = ...,
+        reuse: Optional[Set[str]] = ...,
+        summarize: bool = ...,
+        for_save: bool = ...,
+    ) -> WhereNode: ...
+    def deconstruct(self) -> Tuple[str, Tuple, Dict[str, str]]: ...
+
+class DeferredAttribute:
+    field_name: str = ...
+    def __init__(self, field_name: str) -> None: ...
+    def __get__(self, instance: Optional[Model], cls: Type[Model] = ...) -> Any: ...
+
+class RegisterLookupMixin:
+    @classmethod
+    def get_lookups(cls) -> Dict[str, Any]: ...
+    def get_lookup(self, lookup_name: str) -> Optional[Any]: ...
+    def get_transform(self, lookup_name: str) -> Optional[Any]: ...
+    @staticmethod
+    def merge_dicts(dicts: List[Dict[str, Any]]) -> Dict[str, Any]: ...
+    @classmethod
+    def register_lookup(cls, lookup: Any, lookup_name: Optional[str] = ...) -> Type[Any]: ...
+
+def select_related_descend(
+    field: Field,
+    restricted: bool,
+    requested: Optional[
+        Union[Dict[str, Dict[str, Dict[str, Dict[str, Dict[str, Dict[str, Dict[str, Dict[Any, Any]]]]]]]], bool]
+    ],
+    load_fields: Optional[Set[str]],
+    reverse: bool = ...,
+) -> bool: ...
+def refs_expression(
+    lookup_parts: List[str], annotations: OrderedDict
+) -> Union[Tuple[bool, Tuple], Tuple[Expression, List[str]]]: ...
+def check_rel_lookup_compatibility(model: Type[Model], target_opts: Any, field: FieldCacheMixin) -> bool: ...
+
+class FilteredRelation:
+    relation_name: str = ...
+    alias: Optional[str] = ...
+    condition: Q = ...
+    path: List[str] = ...
+    def __init__(self, relation_name: str, *, condition: Any = ...) -> None: ...
+    def clone(self) -> FilteredRelation: ...
+    def resolve_expression(self, *args: Any, **kwargs: Any) -> None: ...
+    def as_sql(self, compiler: SQLCompiler, connection: Any) -> Tuple[str, List[Union[int, str]]]: ...

django-stubs/db/models/sql/compiler.pyi

@@ -35,11 +35,15 @@ class SQLCompiler:
         select: List[Tuple[BaseExpression, Tuple[str, List[float]], Optional[str]]],
         order_by: List[Tuple[Expression, Tuple[str, List[Union[int, str]], bool]]],
     ) -> List[Tuple[str, List[float]]]: ...
-    def collapse_group_by(self, expressions: List[Expression], having: Union[List[Expression], Tuple]) -> List[Expression]: ...
+    def collapse_group_by(
+        self, expressions: List[Expression], having: Union[List[Expression], Tuple]
+    ) -> List[Expression]: ...
     def get_select(
         self
     ) -> Tuple[
-        List[Tuple[Expression, Tuple[str, List[Union[int, str]]], Optional[str]]], Optional[Dict[str, Any]], Dict[str, int]
+        List[Tuple[Expression, Tuple[str, List[Union[int, str]]], Optional[str]]],
+        Optional[Dict[str, Any]],
+        Dict[str, int],
     ]: ...
     def get_order_by(self) -> List[Tuple[Expression, Tuple[str, List[Any], bool]]]: ...
     def get_extra_select(
@@ -48,7 +52,9 @@ class SQLCompiler:
         select: List[Tuple[Expression, Tuple[str, List[float]], Optional[str]]],
     ) -> List[Tuple[Expression, Tuple[str, List[Any]], None]]: ...
     def quote_name_unless_alias(self, name: str) -> str: ...
-    def compile(self, node: Any, select_format: Any = ...) -> Tuple[str, Union[List[Optional[int]], Tuple[int, int]]]: ...
+    def compile(
+        self, node: Any, select_format: Any = ...
+    ) -> Tuple[str, Union[List[Optional[int]], Tuple[int, int]]]: ...
     def get_combinator_sql(self, combinator: str, all: bool) -> Tuple[List[str], Union[List[int], List[str]]]: ...
     def as_sql(self, with_limits: bool = ..., with_col_aliases: bool = ...) -> Any: ...
     def get_default_columns(
@@ -93,6 +99,8 @@ class SQLCompiler:
         chunk_size: int = ...,
     ) -> Iterator[Any]: ...
     def has_results(self) -> bool: ...
-    def execute_sql(self, result_type: str = ..., chunked_fetch: bool = ..., chunk_size: int = ...) -> Optional[Any]: ...
+    def execute_sql(
+        self, result_type: str = ..., chunked_fetch: bool = ..., chunk_size: int = ...
+    ) -> Optional[Any]: ...
     def as_subquery_condition(self, alias: str, columns: List[str], compiler: SQLCompiler) -> Tuple[str, Tuple]: ...
     def explain_query(self) -> Iterator[str]: ...

django-stubs/db/models/sql/datastructures.pyi

@@ -0,0 +1,50 @@
+from collections import OrderedDict
+from typing import Any, Dict, List, Optional, Tuple, Union
+
+from django.db.models.fields.mixins import FieldCacheMixin
+from django.db.models.query_utils import FilteredRelation, PathInfo
+from django.db.models.sql.compiler import SQLCompiler
+
+class MultiJoin(Exception):
+    level: int = ...
+    names_with_path: List[Tuple[str, List[PathInfo]]] = ...
+    def __init__(self, names_pos: int, path_with_names: List[Tuple[str, List[PathInfo]]]) -> None: ...
+
+class Empty: ...
+
+class Join:
+    table_name: str = ...
+    parent_alias: str = ...
+    table_alias: Optional[str] = ...
+    join_type: str = ...
+    join_cols: Tuple = ...
+    join_field: FieldCacheMixin = ...
+    nullable: bool = ...
+    filtered_relation: Optional[FilteredRelation] = ...
+    def __init__(
+        self,
+        table_name: str,
+        parent_alias: str,
+        table_alias: Optional[str],
+        join_type: str,
+        join_field: FieldCacheMixin,
+        nullable: bool,
+        filtered_relation: Optional[FilteredRelation] = ...,
+    ) -> None: ...
+    def as_sql(self, compiler: SQLCompiler, connection: Any) -> Tuple[str, List[Union[int, str]]]: ...
+    def relabeled_clone(self, change_map: Union[Dict[str, str], OrderedDict]) -> Join: ...
+    def equals(self, other: Union[BaseTable, Join], with_filtered_relation: bool) -> bool: ...
+    def __eq__(self, other: Union[BaseTable, Join]) -> bool: ...
+    def demote(self) -> Join: ...
+    def promote(self) -> Join: ...
+
+class BaseTable:
+    join_type: Any = ...
+    parent_alias: Any = ...
+    filtered_relation: Any = ...
+    table_name: str = ...
+    table_alias: Optional[str] = ...
+    def __init__(self, table_name: str, alias: Optional[str]) -> None: ...
+    def as_sql(self, compiler: SQLCompiler, connection: Any) -> Tuple[str, List[Any]]: ...
+    def relabeled_clone(self, change_map: OrderedDict) -> BaseTable: ...
+    def equals(self, other: Join, with_filtered_relation: bool) -> bool: ...

django-stubs/db/models/sql/query.pyi

@@ -0,0 +1,187 @@
+import collections
+from collections import OrderedDict, namedtuple
+from datetime import datetime
+from decimal import Decimal
+from typing import Any, Callable, Dict, Iterator, List, Optional, Set, Tuple, Type, Union
+from uuid import UUID
+
+from django.db.models import Model, Field, Q, FilteredRelation, Expression, QuerySet
+from django.db.models.query_utils import PathInfo
+from django.db.models.sql.compiler import SQLCompiler
+from django.db.models.sql.where import WhereNode
+
+JoinInfo = namedtuple("JoinInfo", ["final_field", "targets", "opts", "joins", "path", "transform_function"])
+
+class RawQuery:
+    high_mark: None
+    low_mark: int
+    params: Union[Any] = ...
+    sql: str = ...
+    using: str = ...
+    extra_select: Dict[Any, Any] = ...
+    annotation_select: Dict[Any, Any] = ...
+    def __init__(self, sql: str, using: str, params: Any = ...) -> None: ...
+    def chain(self, using: str) -> RawQuery: ...
+    def clone(self, using: str) -> RawQuery: ...
+    def get_columns(self) -> List[str]: ...
+    def __iter__(self): ...
+
+class Query:
+    base_table: str
+    related_ids: None
+    related_updates: Dict[Type[Model], List[Tuple[Field, None, Union[int, str]]]]
+    values: List[Any]
+    alias_prefix: str = ...
+    subq_aliases: frozenset = ...
+    compiler: str = ...
+    model: Optional[Type[Model]] = ...
+    alias_refcount: Dict[str, int] = ...
+    alias_map: OrderedDict = ...
+    external_aliases: Set[str] = ...
+    table_map: Dict[str, List[str]] = ...
+    default_cols: bool = ...
+    default_ordering: bool = ...
+    standard_ordering: bool = ...
+    used_aliases: Set[str] = ...
+    filter_is_sticky: bool = ...
+    subquery: bool = ...
+    order_by: Tuple = ...
+    distinct: bool = ...
+    distinct_fields: Tuple = ...
+    select_for_update: bool = ...
+    select_for_update_nowait: bool = ...
+    select_for_update_skip_locked: bool = ...
+    select_for_update_of: Tuple = ...
+    select_related: Union[
+        Dict[str, Dict[str, Dict[str, Dict[str, Dict[str, Dict[str, Dict[str, Dict[Any, Any]]]]]]]], bool
+    ] = ...
+    max_depth: int = ...
+    values_select: Tuple = ...
+    annotation_select_mask: Optional[Set[str]] = ...
+    combinator: Optional[str] = ...
+    combinator_all: bool = ...
+    combined_queries: Tuple = ...
+    extra_select_mask: Optional[Set[str]] = ...
+    extra_tables: Tuple = ...
+    extra_order_by: Union[List[str], Tuple] = ...
+    deferred_loading: Tuple[Union[Set[str], frozenset], bool] = ...
+    explain_query: bool = ...
+    explain_format: Optional[str] = ...
+    explain_options: Dict[str, int] = ...
+    def __init__(self, model: Optional[Type[Model]], where: Type[WhereNode] = ...) -> None: ...
+    @property
+    def extra(self) -> OrderedDict: ...
+    @property
+    def annotations(self) -> OrderedDict: ...
+    @property
+    def has_select_fields(self) -> bool: ...
+    def sql_with_params(self) -> Tuple[str, Tuple]: ...
+    def __deepcopy__(self, memo: Dict[str, Any]) -> Query: ...
+    def get_compiler(self, using: Optional[str] = ..., connection: Any = ...) -> SQLCompiler: ...
+    def clone(self) -> Query: ...
+    def chain(self, klass: Optional[Type[Query]] = ...) -> Query: ...
+    def relabeled_clone(self, change_map: Union[Dict[Any, Any], OrderedDict]) -> Query: ...
+    def get_count(self, using: str) -> int: ...
+    def has_filters(self) -> WhereNode: ...
+    def has_results(self, using: str) -> bool: ...
+    def explain(self, using: str, format: Optional[str] = ..., **options: Any) -> str: ...
+    def combine(self, rhs: Query, connector: str) -> None: ...
+    def deferred_to_data(self, target: Dict[Any, Any], callback: Callable) -> None: ...
+    def ref_alias(self, alias: str) -> None: ...
+    def unref_alias(self, alias: str, amount: int = ...) -> None: ...
+    def promote_joins(self, aliases: Set[str]) -> None: ...
+    def demote_joins(self, aliases: Set[str]) -> None: ...
+    def reset_refcounts(self, to_counts: Dict[str, int]) -> None: ...
+    def change_aliases(self, change_map: Union[Dict[Any, Any], OrderedDict]) -> None: ...
+    def bump_prefix(self, outer_query: Query) -> None: ...
+    def get_initial_alias(self) -> str: ...
+    def count_active_tables(self) -> int: ...
+    def resolve_expression(self, query: Query, *args: Any, **kwargs: Any) -> Query: ...
+    def as_sql(self, compiler: SQLCompiler, connection: Any) -> Tuple[str, Tuple]: ...
+    def resolve_lookup_value(self, value: Any, can_reuse: Optional[Set[str]], allow_joins: bool) -> Any: ...
+    def build_filter(
+        self,
+        filter_expr: Union[Dict[str, str], Tuple[str, Tuple[int, int]]],
+        branch_negated: bool = ...,
+        current_negated: bool = ...,
+        can_reuse: Optional[Set[str]] = ...,
+        allow_joins: bool = ...,
+        split_subq: bool = ...,
+        reuse_with_filtered_relation: bool = ...,
+    ) -> Tuple[WhereNode, List[Any]]: ...
+    def add_filter(self, filter_clause: Tuple[str, Union[List[int], List[str]]]) -> None: ...
+    def add_q(self, q_object: Q) -> None: ...
+    def build_filtered_relation_q(
+        self, q_object: Q, reuse: Set[str], branch_negated: bool = ..., current_negated: bool = ...
+    ) -> WhereNode: ...
+    def add_filtered_relation(self, filtered_relation: FilteredRelation, alias: str) -> None: ...
+    def setup_joins(
+        self,
+        names: List[str],
+        opts: Any,
+        alias: str,
+        can_reuse: Optional[Set[str]] = ...,
+        allow_many: bool = ...,
+        reuse_with_filtered_relation: bool = ...,
+    ) -> JoinInfo: ...
+    def trim_joins(
+        self, targets: Tuple[Field], joins: List[str], path: List[PathInfo]
+    ) -> Tuple[Tuple[Field], str, List[str]]: ...
+    def resolve_ref(
+        self, name: str, allow_joins: bool = ..., reuse: Optional[Set[str]] = ..., summarize: bool = ...
+    ) -> Expression: ...
+    def split_exclude(
+        self,
+        filter_expr: Tuple[str, Union[QuerySet, int]],
+        can_reuse: Set[str],
+        names_with_path: List[Tuple[str, List[PathInfo]]],
+    ) -> Tuple[WhereNode, Tuple]: ...
+    def set_empty(self) -> None: ...
+    def is_empty(self) -> bool: ...
+    high_mark: Optional[int] = ...
+    low_mark: int = ...
+    def set_limits(self, low: Optional[int] = ..., high: Optional[int] = ...) -> None: ...
+    def clear_limits(self) -> None: ...
+    def has_limit_one(self) -> bool: ...
+    def can_filter(self) -> bool: ...
+    def clear_select_clause(self) -> None: ...
+    def clear_select_fields(self) -> None: ...
+    def set_select(self, cols: List[Expression]) -> None: ...
+    def add_distinct_fields(self, *field_names: Any) -> None: ...
+    def add_fields(self, field_names: Union[Iterator[Any], List[str]], allow_m2m: bool = ...) -> None: ...
+    def add_ordering(self, *ordering: Any) -> None: ...
+    def clear_ordering(self, force_empty: bool) -> None: ...
+    def set_group_by(self) -> None: ...
+    def add_select_related(self, fields: Tuple[str]) -> None: ...
+    def add_extra(
+        self,
+        select: Optional[Union[Dict[str, int], Dict[str, str], OrderedDict]],
+        select_params: Optional[Union[List[int], List[str], Tuple[int]]],
+        where: Optional[List[str]],
+        params: Optional[List[str]],
+        tables: Optional[List[str]],
+        order_by: Optional[Union[List[str], Tuple[str]]],
+    ) -> None: ...
+    def clear_deferred_loading(self) -> None: ...
+    def add_deferred_loading(self, field_names: Tuple[str]) -> None: ...
+    def add_immediate_loading(self, field_names: Tuple[str]) -> None: ...
+    def get_loaded_field_names(self) -> Dict[Type[Model], Set[str]]: ...
+    def get_loaded_field_names_cb(
+        self, target: Dict[Type[Model], Set[str]], model: Type[Model], fields: Set[Field]
+    ) -> None: ...
+    def set_annotation_mask(self, names: Optional[Union[List[str], Set[str], Tuple]]) -> None: ...
+    def append_annotation_mask(self, names: List[str]) -> None: ...
+    def set_extra_mask(self, names: Union[List[str], Tuple]) -> None: ...
+    def set_values(self, fields: Union[List[str], Tuple]) -> None: ...
+    def trim_start(self, names_with_path: List[Tuple[str, List[PathInfo]]]) -> Tuple[str, bool]: ...
+    def is_nullable(self, field: Field) -> bool: ...
+
+class JoinPromoter:
+    connector: str = ...
+    negated: bool = ...
+    effective_connector: str = ...
+    num_children: int = ...
+    votes: collections.Counter = ...
+    def __init__(self, connector: str, num_children: int, negated: bool) -> None: ...
+    def add_votes(self, votes: Union[Iterator[Any], List[Any], Set[str], Tuple]) -> None: ...
+    def update_join_types(self, query: Query) -> Set[str]: ...

django-stubs/db/models/sql/subqueries.pyi

@@ -0,0 +1,211 @@
+from typing import Any, Dict, List, Optional, Tuple, Type, Union
+
+from django.db.models.base import Model
+from django.db.models.expressions import Case
+from django.db.models.fields import DateTimeCheckMixin, Field
+from django.db.models.query import QuerySet
+from django.db.models.sql.query import Query
+from django.db.models.sql.where import WhereNode
+from django.utils.datastructures import ImmutableList
+
+class DeleteQuery(Query):
+    alias_refcount: Dict[str, int]
+    annotation_select_mask: None
+    base_table: str
+    combinator: None
+    combinator_all: bool
+    combined_queries: Tuple
+    default_cols: bool
+    default_ordering: bool
+    deferred_loading: Tuple[frozenset, bool]
+    distinct: bool
+    distinct_fields: Tuple
+    explain_format: None
+    explain_options: Dict[Any, Any]
+    explain_query: bool
+    external_aliases: Set[Any]
+    extra_order_by: Tuple
+    extra_select_mask: None
+    extra_tables: Tuple
+    filter_is_sticky: bool
+    group_by: None
+    high_mark: None
+    low_mark: int
+    max_depth: int
+    model: Type[django.db.models.base.Model]
+    order_by: Tuple
+    select: Tuple
+    select_for_update: bool
+    select_for_update_nowait: bool
+    select_for_update_of: Tuple
+    select_for_update_skip_locked: bool
+    select_related: bool
+    standard_ordering: bool
+    subq_aliases: frozenset
+    subquery: bool
+    table_map: Dict[str, List[str]]
+    used_aliases: Set[str]
+    values_select: Tuple
+    where_class: Type[django.db.models.sql.where.WhereNode]
+    compiler: str = ...
+    alias_map: Union[Dict[str, django.db.models.sql.datastructures.BaseTable], collections.OrderedDict] = ...
+    where: django.db.models.sql.where.WhereNode = ...
+    def do_query(self, table: str, where: WhereNode, using: str) -> int: ...
+    def delete_batch(self, pk_list: Union[List[int], List[str]], using: str) -> int: ...
+    def delete_qs(self, query: QuerySet, using: str) -> int: ...
+
+class UpdateQuery(Query):
+    alias_map: collections.OrderedDict
+    alias_refcount: Dict[str, int]
+    annotation_select_mask: Optional[Set[Any]]
+    base_table: str
+    combinator: None
+    combinator_all: bool
+    combined_queries: Tuple
+    default_cols: bool
+    default_ordering: bool
+    deferred_loading: Tuple[frozenset, bool]
+    distinct: bool
+    distinct_fields: Tuple
+    explain_format: None
+    explain_options: Dict[Any, Any]
+    explain_query: bool
+    external_aliases: Set[Any]
+    extra_order_by: Tuple
+    extra_select_mask: Optional[Set[Any]]
+    extra_tables: Tuple
+    filter_is_sticky: bool
+    group_by: Optional[bool]
+    high_mark: None
+    low_mark: int
+    max_depth: int
+    model: Type[django.db.models.base.Model]
+    order_by: Tuple
+    related_ids: Optional[List[int]]
+    related_updates: Dict[
+        Type[django.db.models.base.Model], List[Tuple[django.db.models.fields.Field, None, Union[int, str]]]
+    ]
+    select: Tuple
+    select_for_update: bool
+    select_for_update_nowait: bool
+    select_for_update_of: Tuple
+    select_for_update_skip_locked: bool
+    select_related: bool
+    standard_ordering: bool
+    subq_aliases: frozenset
+    subquery: bool
+    table_map: Dict[str, List[str]]
+    used_aliases: Set[str]
+    values: List[
+        Tuple[
+            django.db.models.fields.Field,
+            Optional[Type[django.db.models.base.Model]],
+            Union[django.db.models.expressions.Case, uuid.UUID],
+        ]
+    ]
+    values_select: Tuple
+    where_class: Type[django.db.models.sql.where.WhereNode]
+    compiler: str = ...
+    def __init__(self, *args: Any, **kwargs: Any) -> None: ...
+    def clone(self) -> UpdateQuery: ...
+    where: django.db.models.sql.where.WhereNode = ...
+    def update_batch(self, pk_list: List[int], values: Dict[str, Optional[int]], using: str) -> None: ...
+    def add_update_values(self, values: Dict[str, Any]) -> None: ...
+    def add_update_fields(self, values_seq: List[Tuple[Field, Optional[Type[Model]], Case]]) -> None: ...
+    def add_related_update(self, model: Type[Model], field: Field, value: Union[int, str]) -> None: ...
+    def get_related_updates(self) -> List[UpdateQuery]: ...
+
+class InsertQuery(Query):
+    alias_map: collections.OrderedDict
+    alias_refcount: Dict[str, int]
+    annotation_select_mask: None
+    combinator: None
+    combinator_all: bool
+    combined_queries: Tuple
+    default_cols: bool
+    default_ordering: bool
+    deferred_loading: Tuple[frozenset, bool]
+    distinct: bool
+    distinct_fields: Tuple
+    explain_format: None
+    explain_options: Dict[Any, Any]
+    explain_query: bool
+    external_aliases: Set[Any]
+    extra_order_by: Tuple
+    extra_select_mask: None
+    extra_tables: Tuple
+    filter_is_sticky: bool
+    group_by: None
+    high_mark: None
+    low_mark: int
+    max_depth: int
+    model: Type[django.db.models.base.Model]
+    order_by: Tuple
+    select: Tuple
+    select_for_update: bool
+    select_for_update_nowait: bool
+    select_for_update_of: Tuple
+    select_for_update_skip_locked: bool
+    select_related: bool
+    standard_ordering: bool
+    subquery: bool
+    table_map: Dict[str, List[str]]
+    used_aliases: Set[Any]
+    values_select: Tuple
+    where: django.db.models.sql.where.WhereNode
+    where_class: Type[django.db.models.sql.where.WhereNode]
+    compiler: str = ...
+    fields: Union[
+        List[django.db.models.fields.DateTimeCheckMixin],
+        List[django.db.models.fields.Field],
+        django.utils.datastructures.ImmutableList,
+    ] = ...
+    objs: List[django.db.models.base.Model] = ...
+    def __init__(self, *args: Any, **kwargs: Any) -> None: ...
+    raw: bool = ...
+    def insert_values(
+        self, fields: Union[List[DateTimeCheckMixin], List[Field], ImmutableList], objs: List[Model], raw: bool = ...
+    ) -> None: ...
+
+class AggregateQuery(Query):
+    alias_map: collections.OrderedDict
+    alias_refcount: Dict[Any, Any]
+    annotation_select_mask: None
+    combinator: None
+    combinator_all: bool
+    combined_queries: Tuple
+    default_cols: bool
+    default_ordering: bool
+    deferred_loading: Tuple[frozenset, bool]
+    distinct: bool
+    distinct_fields: Tuple
+    explain_format: None
+    explain_options: Dict[Any, Any]
+    explain_query: bool
+    external_aliases: Set[Any]
+    extra_order_by: Tuple
+    extra_select_mask: None
+    extra_tables: Tuple
+    filter_is_sticky: bool
+    group_by: None
+    high_mark: None
+    low_mark: int
+    max_depth: int
+    model: Type[django.db.models.base.Model]
+    order_by: Tuple
+    select: Tuple
+    select_for_update: bool
+    select_for_update_nowait: bool
+    select_for_update_of: Tuple
+    select_for_update_skip_locked: bool
+    select_related: bool
+    standard_ordering: bool
+    sub_params: Tuple
+    subquery: Union[bool, str]
+    table_map: Dict[Any, Any]
+    used_aliases: Set[Any]
+    values_select: Tuple
+    where: django.db.models.sql.where.WhereNode
+    where_class: Type[django.db.models.sql.where.WhereNode]
+    compiler: str = ...
+    def add_subquery(self, query: Query, using: str) -> None: ...

django-stubs/db/models/sql/where.pyi

@@ -0,0 +1,46 @@
+from collections import OrderedDict
+from typing import Any, Dict, List, Optional, Tuple, Union
+
+from django.db.models.expressions import Expression
+from django.db.models.sql.compiler import SQLCompiler
+from django.db.models.sql.query import Query
+from django.utils import tree
+
+AND: str
+OR: str
+
+class WhereNode(tree.Node):
+    connector: str
+    contains_aggregate: bool
+    contains_over_clause: bool
+    negated: bool
+    default: Any = ...
+    resolved: bool = ...
+    conditional: bool = ...
+    def split_having(self, negated: bool = ...) -> Tuple[Optional[WhereNode], Optional[WhereNode]]: ...
+    def as_sql(self, compiler: SQLCompiler, connection: Any) -> Tuple[str, List[Union[int, str]]]: ...
+    def get_group_by_cols(self) -> List[Expression]: ...
+    def relabel_aliases(self, change_map: Union[Dict[Optional[str], str], OrderedDict]) -> None: ...
+    def clone(self) -> WhereNode: ...
+    def relabeled_clone(self, change_map: Union[Dict[Optional[str], str], OrderedDict]) -> WhereNode: ...
+    def resolve_expression(self, *args: Any, **kwargs: Any) -> WhereNode: ...
+
+class NothingNode:
+    contains_aggregate: bool = ...
+    def as_sql(self, compiler: SQLCompiler = ..., connection: Any = ...) -> Any: ...
+
+class ExtraWhere:
+    contains_aggregate: bool = ...
+    sqls: List[str] = ...
+    params: Optional[Union[List[int], List[str]]] = ...
+    def __init__(self, sqls: List[str], params: Optional[Union[List[int], List[str]]]) -> None: ...
+    def as_sql(self, compiler: SQLCompiler = ..., connection: Any = ...) -> Tuple[str, Union[List[int], List[str]]]: ...
+
+class SubqueryConstraint:
+    contains_aggregate: bool = ...
+    alias: str = ...
+    columns: List[str] = ...
+    targets: List[str] = ...
+    query_object: Query = ...
+    def __init__(self, alias: str, columns: List[str], targets: List[str], query_object: Query) -> None: ...
+    def as_sql(self, compiler: SQLCompiler, connection: Any) -> Tuple[str, Tuple]: ...

django-stubs/http/response.pyi

@@ -15,7 +15,9 @@ class HttpResponseBase(six.Iterator):
     closed = ...  # type: bool
     reason_phrase = ...  # type: str
     charset = ...  # type: str
-    def __init__(self, content_type: str = None, status: int = None, reason: str = None, charset: str = None) -> None: ...
+    def __init__(
+        self, content_type: str = None, status: int = None, reason: str = None, charset: str = None
+    ) -> None: ...
     def serialize_headers(self) -> bytes: ...
     def __bytes__(self) -> bytes: ...
     def __setitem__(self, header: str, value: Union[str, bytes]) -> None: ...

django-stubs/utils/tree.pyi

@@ -0,0 +1,14 @@
+from typing import Any, Dict, Optional, Tuple
+
+class Node:
+    default: str = ...
+    connector: str = ...
+    negated: bool = ...
+    def __init__(self, children: Optional[Node] = ..., connector: Optional[str] = ..., negated: bool = ...) -> None: ...
+    def __deepcopy__(self, memodict: Dict[Any, Any]) -> Node: ...
+    def __len__(self) -> int: ...
+    def __bool__(self) -> bool: ...
+    def __contains__(self, other: Tuple[str, int]) -> bool: ...
+    def __hash__(self) -> int: ...
+    def add(self, data: Any, conn_type: str, squash: bool = ...) -> Any: ...
+    def negate(self) -> None: ...

django-stubs/views/generic/base.pyi

@@ -16,7 +16,9 @@ class View:
     @classmethod
     def as_view(cls: Any, **initkwargs: object) -> Callable[..., http.HttpResponse]: ...
     def dispatch(self, request: http.HttpRequest, *args: object, **kwargs: object) -> http.HttpResponse: ...
-    def http_method_not_allowed(self, request: http.HttpRequest, *args: object, **kwargs: object) -> http.HttpResponse: ...
+    def http_method_not_allowed(
+        self, request: http.HttpRequest, *args: object, **kwargs: object
+    ) -> http.HttpResponse: ...
     def options(self, request: http.HttpRequest, *args: object, **kwargs: object) -> http.HttpResponse: ...
 
 class TemplateResponseMixin: