run black over stubs, add checking to travis

django-stubs-generated/db/models/functions/comparison.pyi

@@ -8,7 +8,6 @@ from django.db.models.expressions import Value
 from django.db.models.fields import Field
 from django.db.models.sql.compiler import SQLCompiler
 
-
 class Cast(Func):
     contains_aggregate: bool
     convert_value: Callable
@@ -18,14 +17,9 @@ class Cast(Func):
     source_expressions: List[django.db.models.expressions.Combinable]
     function: str = ...
     template: str = ...
-    def __init__(
-        self, expression: Union[date, Decimal, Value, str], output_field: Field
-    ) -> None: ...
+    def __init__(self, expression: Union[date, Decimal, Value, str], output_field: Field) -> None: ...
     def as_sql(
-        self,
-        compiler: SQLCompiler,
-        connection: DatabaseWrapper,
-        **extra_context: Any
+        self, compiler: SQLCompiler, connection: DatabaseWrapper, **extra_context: Any
     ) -> Tuple[str, Union[List[date], List[Decimal]]]: ...
     def as_mysql(self, compiler: Any, connection: Any): ...
     def as_postgresql(self, compiler: Any, connection: Any): ...
@@ -51,9 +45,7 @@ class Greatest(Func):
     source_expressions: List[django.db.models.expressions.Combinable]
     function: str = ...
     def __init__(self, *expressions: Any, **extra: Any) -> None: ...
-    def as_sqlite(
-        self, compiler: SQLCompiler, connection: DatabaseWrapper
-    ) -> Tuple[str, List[datetime]]: ...
+    def as_sqlite(self, compiler: SQLCompiler, connection: DatabaseWrapper) -> Tuple[str, List[datetime]]: ...
 
 class Least(Func):
     contains_aggregate: bool
@@ -65,6 +57,4 @@ class Least(Func):
     source_expressions: List[django.db.models.expressions.Combinable]
     function: str = ...
     def __init__(self, *expressions: Any, **extra: Any) -> None: ...
-    def as_sqlite(
-        self, compiler: SQLCompiler, connection: DatabaseWrapper
-    ) -> Tuple[str, List[datetime]]: ...
+    def as_sqlite(self, compiler: SQLCompiler, connection: DatabaseWrapper) -> Tuple[str, List[datetime]]: ...

django-stubs-generated/db/models/functions/datetime.pyi

@@ -9,7 +9,6 @@ from django.db.models.fields import Field
 from django.db.models.sql.compiler import SQLCompiler
 from django.db.models.sql.query import Query
 
-
 class TimezoneMixin:
     tzinfo: Any = ...
     def get_tzname(self) -> Optional[str]: ...
@@ -24,15 +23,9 @@ class Extract(TimezoneMixin, Transform):
     output_field: Any = ...
     tzinfo: None = ...
     def __init__(
-        self,
-        expression: Union[Expression, str],
-        lookup_name: Optional[str] = ...,
-        tzinfo: None = ...,
-        **extra: Any
+        self, expression: Union[Expression, str], lookup_name: Optional[str] = ..., tzinfo: None = ..., **extra: Any
     ) -> None: ...
-    def as_sql(
-        self, compiler: SQLCompiler, connection: DatabaseWrapper
-    ) -> Tuple[str, List[Any]]: ...
+    def as_sql(self, compiler: SQLCompiler, connection: DatabaseWrapper) -> Tuple[str, List[Any]]: ...
     def resolve_expression(
         self,
         query: Query = ...,
@@ -137,15 +130,9 @@ class TruncBase(TimezoneMixin, Transform):
     kind: Any = ...
     tzinfo: Any = ...
     def __init__(
-        self,
-        expression: Union[Col, str],
-        output_field: Optional[Field] = ...,
-        tzinfo: None = ...,
-        **extra: Any
+        self, expression: Union[Col, str], output_field: Optional[Field] = ..., tzinfo: None = ..., **extra: Any
     ) -> None: ...
-    def as_sql(
-        self, compiler: SQLCompiler, connection: DatabaseWrapper
-    ) -> Tuple[str, List[Any]]: ...
+    def as_sql(self, compiler: SQLCompiler, connection: DatabaseWrapper) -> Tuple[str, List[Any]]: ...
     def resolve_expression(
         self,
         query: Query = ...,
@@ -154,31 +141,18 @@ class TruncBase(TimezoneMixin, Transform):
         summarize: bool = ...,
         for_save: bool = ...,
     ) -> TruncBase: ...
-    def convert_value(
-        self,
-        value: datetime,
-        expression: models.functions.TruncBase,
-        connection: DatabaseWrapper,
-    ) -> datetime: ...
+    def convert_value(self, value: datetime, expression: models.functions.TruncBase, connection: DatabaseWrapper) -> datetime: ...
 
 class Trunc(TruncBase):
     contains_aggregate: bool
     extra: Dict[Any, Any]
     is_summary: bool
-    output_field: Union[
-        models.fields.DateTimeCheckMixin,
-        models.fields.IntegerField,
-    ]
+    output_field: Union[models.fields.DateTimeCheckMixin, models.fields.IntegerField]
     source_expressions: List[Combinable]
     tzinfo: None
     kind: str = ...
     def __init__(
-        self,
-        expression: str,
-        kind: str,
-        output_field: Optional[Field] = ...,
-        tzinfo: None = ...,
-        **extra: Any
+        self, expression: str, kind: str, output_field: Optional[Field] = ..., tzinfo: None = ..., **extra: Any
     ) -> None: ...
 
 class TruncYear(TruncBase):
@@ -235,9 +209,7 @@ class TruncDate(TruncBase):
     kind: str = ...
     lookup_name: str = ...
     output_field: models.fields.TimeField = ...
-    def as_sql(
-        self, compiler: SQLCompiler, connection: DatabaseWrapper
-    ) -> Tuple[str, List[Any]]: ...
+    def as_sql(self, compiler: SQLCompiler, connection: DatabaseWrapper) -> Tuple[str, List[Any]]: ...
 
 class TruncTime(TruncBase):
     contains_aggregate: bool
@@ -248,9 +220,7 @@ class TruncTime(TruncBase):
     kind: str = ...
     lookup_name: str = ...
     output_field: models.fields.DateField = ...
-    def as_sql(
-        self, compiler: SQLCompiler, connection: DatabaseWrapper
-    ) -> Tuple[str, List[Any]]: ...
+    def as_sql(self, compiler: SQLCompiler, connection: DatabaseWrapper) -> Tuple[str, List[Any]]: ...
 
 class TruncHour(TruncBase):
     contains_aggregate: bool

django-stubs-generated/db/models/functions/text.pyi

@@ -5,14 +5,8 @@ from django.db.models import Func, Transform
 from django.db.models.expressions import Combinable, Expression, Value
 from django.db.models.sql.compiler import SQLCompiler
 
-
 class BytesToCharFieldConversionMixin:
-    def convert_value(
-        self,
-        value: str,
-        expression: BytesToCharFieldConversionMixin,
-        connection: DatabaseWrapper,
-    ) -> str: ...
+    def convert_value(self, value: str, expression: BytesToCharFieldConversionMixin, connection: DatabaseWrapper) -> str: ...
 
 class Chr(Transform):
     contains_aggregate: bool
@@ -24,12 +18,7 @@ class Chr(Transform):
     lookup_name: str = ...
     def as_mysql(self, compiler: Any, connection: Any): ...
     def as_oracle(self, compiler: Any, connection: Any): ...
-    def as_sqlite(
-        self,
-        compiler: SQLCompiler,
-        connection: DatabaseWrapper,
-        **extra_context: Any
-    ) -> Tuple[str, List[int]]: ...
+    def as_sqlite(self, compiler: SQLCompiler, connection: DatabaseWrapper, **extra_context: Any) -> Tuple[str, List[int]]: ...
 
 class ConcatPair(Func):
     contains_aggregate: bool
@@ -38,9 +27,7 @@ class ConcatPair(Func):
     output_field: django.db.models.fields.CharField
     source_expressions: List[django.db.models.expressions.Combinable]
     function: str = ...
-    def as_sqlite(
-        self, compiler: SQLCompiler, connection: DatabaseWrapper
-    ) -> Tuple[str, List[str]]: ...
+    def as_sqlite(self, compiler: SQLCompiler, connection: DatabaseWrapper) -> Tuple[str, List[str]]: ...
     def as_mysql(self, compiler: Any, connection: Any): ...
     def coalesce(self) -> ConcatPair: ...
 
@@ -65,16 +52,9 @@ class Left(Func):
     source_expressions: List[django.db.models.expressions.Combinable]
     function: str = ...
     arity: int = ...
-    def __init__(
-        self, expression: str, length: Union[Value, int], **extra: Any
-    ) -> None: ...
+    def __init__(self, expression: str, length: Union[Value, int], **extra: Any) -> None: ...
     def get_substr(self) -> Substr: ...
-    def use_substr(
-        self,
-        compiler: SQLCompiler,
-        connection: DatabaseWrapper,
-        **extra_context: Any
-    ) -> Tuple[str, List[int]]: ...
+    def use_substr(self, compiler: SQLCompiler, connection: DatabaseWrapper, **extra_context: Any) -> Tuple[str, List[int]]: ...
     as_oracle: Any = ...
     as_sqlite: Any = ...
 
@@ -109,13 +89,7 @@ class LPad(BytesToCharFieldConversionMixin, Func):
     output_field: django.db.models.fields.CharField
     source_expressions: List[django.db.models.expressions.Combinable]
     function: str = ...
-    def __init__(
-        self,
-        expression: str,
-        length: Union[Length, int],
-        fill_text: Value = ...,
-        **extra: Any
-    ) -> None: ...
+    def __init__(self, expression: str, length: Union[Length, int], fill_text: Value = ..., **extra: Any) -> None: ...
 
 class LTrim(Transform):
     contains_aggregate: bool
@@ -136,15 +110,8 @@ class Ord(Transform):
     function: str = ...
     lookup_name: str = ...
     output_field: Any = ...
-    def as_mysql(
-        self, compiler: Any, connection: Any, **extra_context: Any
-    ): ...
-    def as_sqlite(
-        self,
-        compiler: SQLCompiler,
-        connection: DatabaseWrapper,
-        **extra_context: Any
-    ) -> Tuple[str, List[Any]]: ...
+    def as_mysql(self, compiler: Any, connection: Any, **extra_context: Any): ...
+    def as_sqlite(self, compiler: SQLCompiler, connection: DatabaseWrapper, **extra_context: Any) -> Tuple[str, List[Any]]: ...
 
 class Repeat(BytesToCharFieldConversionMixin, Func):
     contains_aggregate: bool
@@ -154,15 +121,8 @@ class Repeat(BytesToCharFieldConversionMixin, Func):
     output_field: django.db.models.fields.CharField
     source_expressions: List[django.db.models.expressions.Combinable]
     function: str = ...
-    def __init__(
-        self,
-        expression: Union[Value, str],
-        number: Union[Length, int],
-        **extra: Any
-    ) -> None: ...
-    def as_oracle(
-        self, compiler: Any, connection: Any, **extra_context: Any
-    ): ...
+    def __init__(self, expression: Union[Value, str], number: Union[Length, int], **extra: Any) -> None: ...
+    def as_oracle(self, compiler: Any, connection: Any, **extra_context: Any): ...
 
 class Replace(Func):
     contains_aggregate: bool
@@ -173,13 +133,7 @@ class Replace(Func):
     output_field: django.db.models.fields.CharField
     source_expressions: List[django.db.models.expressions.Combinable]
     function: str = ...
-    def __init__(
-        self,
-        expression: Combinable,
-        text: Value,
-        replacement: Value = ...,
-        **extra: Any
-    ) -> None: ...
+    def __init__(self, expression: Combinable, text: Value, replacement: Value = ..., **extra: Any) -> None: ...
 
 class Right(Left):
     contains_aggregate: bool
@@ -238,12 +192,8 @@ class Substr(Func):
         length: Optional[Union[Value, int]] = ...,
         **extra: Any
     ) -> None: ...
-    def as_sqlite(
-        self, compiler: SQLCompiler, connection: DatabaseWrapper
-    ) -> Tuple[str, List[Union[int, str]]]: ...
-    def as_oracle(
-        self, compiler: SQLCompiler, connection: DatabaseWrapper
-    ) -> Tuple[str, List[int]]: ...
+    def as_sqlite(self, compiler: SQLCompiler, connection: DatabaseWrapper) -> Tuple[str, List[Union[int, str]]]: ...
+    def as_oracle(self, compiler: SQLCompiler, connection: DatabaseWrapper) -> Tuple[str, List[int]]: ...
 
 class Trim(Transform):
     contains_aggregate: bool

django-stubs-generated/db/models/functions/window.pyi

@@ -2,7 +2,6 @@ from typing import Any, Optional, Dict, List
 
 from django.db.models import Func
 
-
 class CumeDist(Func):
     function: str = ...
     name: str = ...
@@ -25,13 +24,7 @@ class FirstValue(Func):
 
 class LagLeadFunction(Func):
     window_compatible: bool = ...
-    def __init__(
-        self,
-        expression: Optional[str],
-        offset: int = ...,
-        default: None = ...,
-        **extra: Any
-    ) -> Any: ...
+    def __init__(self, expression: Optional[str], offset: int = ..., default: None = ..., **extra: Any) -> Any: ...
 
 class Lag(LagLeadFunction):
     function: str = ...
@@ -51,9 +44,7 @@ class NthValue(Func):
     function: str = ...
     name: str = ...
     window_compatible: bool = ...
-    def __init__(
-        self, expression: Optional[str], nth: int = ..., **extra: Any
-    ) -> Any: ...
+    def __init__(self, expression: Optional[str], nth: int = ..., **extra: Any) -> Any: ...
 
 class Ntile(Func):
     function: str = ...