[pre-commit.ci] auto fixes from pre-commit.com hooks

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Author: pre-commit-ci[bot]

narwhals/_sql/expr.py

@@ -3,35 +3,38 @@
 from typing import TYPE_CHECKING, Any, Callable, Literal, Protocol, cast
 
 from narwhals._compliant.expr import LazyExpr
-from narwhals._compliant.typing import (
-    AliasNames,
-    EvalNames,
-    EvalSeries,
-    NativeExprT,
-    WindowFunction,
-)
+from narwhals._compliant.typing import AliasNames, WindowFunction
 from narwhals._compliant.window import WindowInputs
 from narwhals._expression_parsing import (
     combine_alias_output_names,
     combine_evaluate_output_names,
 )
-from narwhals._sql.typing import SQLLazyFrameT, NativeSQLExprT
+from narwhals._sql.typing import NativeSQLExprT, SQLLazyFrameT
 from narwhals._utils import Implementation, Version, not_implemented
 
 if TYPE_CHECKING:
     from collections.abc import Iterable, Sequence
 
     from typing_extensions import Self, TypeIs
 
-    from narwhals._compliant.typing import AliasNames, WindowFunction
+    from narwhals._compliant.typing import (
+        AliasNames,
+        EvalNames,
+        EvalSeries,
+        NativeExprT,
+        WindowFunction,
+    )
     from narwhals._expression_parsing import ExprMetadata
     from narwhals._sql.namespace import SQLNamespace
     from narwhals.typing import NumericLiteral, PythonLiteral, RankMethod, TemporalLiteral
 
-# am I right in thinking we need to pass NativeSQLExprT here, not NativeExprT? since NativeSQLExprT 
-# inherits from it, I can use that througout in the code and it will also have its parents functionality. 
+
+# am I right in thinking we need to pass NativeSQLExprT here, not NativeExprT? since NativeSQLExprT
+# inherits from it, I can use that througout in the code and it will also have its parents functionality.
 # though at the moment there are still problems with the class..
-class SQLExpr(LazyExpr[SQLLazyFrameT, NativeSQLExprT], Protocol[SQLLazyFrameT, NativeSQLExprT]):
+class SQLExpr(
+    LazyExpr[SQLLazyFrameT, NativeSQLExprT], Protocol[SQLLazyFrameT, NativeSQLExprT]
+):
     _call: EvalSeries[SQLLazyFrameT, NativeSQLExprT]
     _evaluate_output_names: EvalNames[SQLLazyFrameT]
     _alias_output_names: AliasNames | None
@@ -498,13 +501,12 @@ def round(self, decimals: int) -> Self:
         return self._with_elementwise(
             lambda expr: self._function("round", expr, self._lit(decimals))
         )
-    # WIP: trying new NativeSQLExprT 
+
+    # WIP: trying new NativeSQLExprT
     def sqrt(self) -> Self:
         def _sqrt(expr: NativeSQLExprT) -> NativeSQLExprT:
             return self._when(
-                expr < self._lit(0),  
-                self._lit(float("nan")),
-                self._function("sqrt", expr),
+                expr < self._lit(0), self._lit(float("nan")), self._function("sqrt", expr)
             )
 
         return self._with_elementwise(_sqrt)

narwhals/_sql/typing.py

@@ -4,8 +4,9 @@
 
 from narwhals._compliant.expr import NativeExpr
 
+
 class NativeSQLExpr(NativeExpr):
-    # both Self because we're comparing an expression with an expression? 
+    # both Self because we're comparing an expression with an expression?
     def __gt__(self, value: Self) -> Self: ...
 
     def __lt__(self, value: Self) -> Self: ...
@@ -26,16 +27,17 @@ def __truediv__(self, value: Self) -> Self: ...
 
     def __mul__(self, value: Self) -> Self: ...
 
+
 if TYPE_CHECKING:
+    from typing_extensions import Self
+
     from narwhals._sql.dataframe import SQLLazyFrame
     from narwhals._sql.expr import SQLExpr
-    from narwhals.dtypes import Boolean
-    from typing_extensions import Self
 
     # TODO: @mp, understand why these are here & if we need one for NativeSQLExprT;
     # seem to reflect number of different 'catgories' each of the parent class has
     # tbc! since NativeExpr only has Protocol, I don't think we need this for NativeSQLExpr
-    # NativeSQLExpr isn't accepting Any arguments :) I need to go back to the reading on 
+    # NativeSQLExpr isn't accepting Any arguments :) I need to go back to the reading on
     # cov-, contra- & invariance
     SQLExprAny = SQLExpr[Any, Any]
     SQLLazyFrameAny = SQLLazyFrame[Any, Any, Any]
@@ -45,5 +47,4 @@ def __mul__(self, value: Self) -> Self: ...
 SQLExprT_contra = TypeVar("SQLExprT_contra", bound="SQLExprAny", contravariant=True)
 SQLLazyFrameT = TypeVar("SQLLazyFrameT", bound="SQLLazyFrameAny")
 # TODO: @mp, should this be contravariant as to do with function arguments? think through!
-NativeSQLExprT = TypeVar("NativeSQLExprT", bound="NativeSQLExprAny") 
-
+NativeSQLExprT = TypeVar("NativeSQLExprT", bound="NativeSQLExprAny")