format Python files with ruff

1 files changed, 16 insertions, 20 deletions

diff --git a/polymatrix/expression/mixins/derivativeexprmixin.py b/polymatrix/expression/mixins/derivativeexprmixin.py
index 64f2640..31a1e31 100644
--- a/polymatrix/expression/mixins/derivativeexprmixin.py
+++ b/polymatrix/expression/mixins/derivativeexprmixin.py
@@ -1,4 +1,3 @@
-
 import abc
 import typing
 
@@ -7,7 +6,9 @@ from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
 from polymatrix.polymatrix.abc import PolyMatrix
 from polymatrix.expressionstate.abc import ExpressionState
 from polymatrix.expression.utils.getderivativemonomials import differentiate_polynomial
-from polymatrix.expression.utils.getvariableindices import get_variable_indices_from_variable
+from polymatrix.expression.utils.getvariableindices import (
+    get_variable_indices_from_variable,
+)
 from polymatrix.utils.getstacklines import FrameSummary
 from polymatrix.utils.tooperatorexception import to_operator_exception
 
@@ -23,43 +24,39 @@ class DerivativeExprMixin(ExpressionBaseMixin):
 
     @property
     @abc.abstractmethod
-    def underlying(self) -> ExpressionBaseMixin:
-        ...
+    def underlying(self) -> ExpressionBaseMixin: ...
 
     @property
     @abc.abstractmethod
-    def variables(self) -> ExpressionBaseMixin:
-        ...
+    def variables(self) -> ExpressionBaseMixin: ...
 
     @property
     @abc.abstractmethod
-    def introduce_derivatives(self) -> bool:
-        ...
+    def introduce_derivatives(self) -> bool: ...
 
     @property
     @abc.abstractmethod
-    def stack(self) -> tuple[FrameSummary]:
-        ...
+    def stack(self) -> tuple[FrameSummary]: ...
 
     # overwrites the abstract method of `ExpressionBaseMixin`
     def apply(
-        self, 
+        self,
         state: ExpressionState,
     ) -> tuple[ExpressionState, PolyMatrix]:
-
-        state, underlying = self.underlying.apply(state=state)        
+        state, underlying = self.underlying.apply(state=state)
         state, variables = get_variable_indices_from_variable(state, self.variables)
 
         if not (underlying.shape[1] == 1):
-            raise AssertionError(to_operator_exception(
-                message=f'{underlying.shape[1]=} is not 1',
-                stack=self.stack,
-            ))
+            raise AssertionError(
+                to_operator_exception(
+                    message=f"{underlying.shape[1]=} is not 1",
+                    stack=self.stack,
+                )
+            )
 
         poly_matrix_data = {}
 
         for row in range(underlying.shape[0]):
-
             underlying_poly = underlying.get_poly(row, 0)
 
             if underlying_poly is None:
@@ -67,7 +64,6 @@ class DerivativeExprMixin(ExpressionBaseMixin):
 
             # derivate each variable and map result to the corresponding column
             for col, variable in enumerate(variables):
-
                 state, diff_polynomial = differentiate_polynomial(
                     polynomial=underlying_poly,
                     diff_wrt_variable=variable,
@@ -84,4 +80,4 @@ class DerivativeExprMixin(ExpressionBaseMixin):
             shape=(underlying.shape[0], len(variables)),
         )
 
-        return state, poly_matrix   
+        return state, poly_matrix