format Python files with ruff

1 files changed, 9 insertions, 15 deletions

diff --git a/polymatrix/expression/mixins/additionexprmixin.py b/polymatrix/expression/mixins/additionexprmixin.py
index 0ba8a2e..bc83ff3 100644
--- a/polymatrix/expression/mixins/additionexprmixin.py
+++ b/polymatrix/expression/mixins/additionexprmixin.py
@@ -1,18 +1,18 @@
 import abc
 import math
-from polymatrix.expression.utils.broadcastpolymatrix import broadcast_poly_matrix
 
 from polymatrix.utils.getstacklines import FrameSummary
 from polymatrix.polymatrix.init import init_poly_matrix
 from polymatrix.polymatrix.abc import PolyMatrix
 from polymatrix.expressionstate.abc import ExpressionState
 from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
+from polymatrix.expression.utils.broadcastpolymatrix import broadcast_poly_matrix
 
 
 class AdditionExprMixin(ExpressionBaseMixin):
-    """ 
-    Adds two polymatrices 
-    
+    """
+    Adds two polymatrices
+
         [[2*x1+x2], [x1**2]] + [[3*x2], [x1]]  ->  [[2*x1+4*x2], [x1+x1**2]].
 
     If one summand is of size (1, 1), then perform broadcast:
@@ -22,22 +22,19 @@ class AdditionExprMixin(ExpressionBaseMixin):
 
     @property
     @abc.abstractmethod
-    def left(self) -> ExpressionBaseMixin:
-        ...
+    def left(self) -> ExpressionBaseMixin: ...
 
     @property
     @abc.abstractmethod
-    def right(self) -> ExpressionBaseMixin:
-        ...
+    def right(self) -> ExpressionBaseMixin: ...
 
     @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, left = self.left.apply(state=state)
@@ -49,11 +46,9 @@ class AdditionExprMixin(ExpressionBaseMixin):
 
         for row in range(left.shape[0]):
             for col in range(left.shape[1]):
-
                 poly_data = {}
 
                 for underlying in (left, right):
-
                     polynomial = underlying.get_poly(row, col)
                     if polynomial is None:
                         continue
@@ -63,7 +58,6 @@ class AdditionExprMixin(ExpressionBaseMixin):
 
                     else:
                         for monomial, value in polynomial.items():
-                            
                             if monomial not in poly_data:
                                 poly_data[monomial] = value
 
@@ -81,4 +75,4 @@ class AdditionExprMixin(ExpressionBaseMixin):
             shape=left.shape,
         )
 
-        return state, poly_matrix   
+        return state, poly_matrix