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-rw-r--r--polymatrix/__init__.py4
-rw-r--r--polymatrix/denserepr/from_.py2
-rw-r--r--polymatrix/denserepr/impl.py2
-rw-r--r--polymatrix/expression/expression.py2
-rw-r--r--polymatrix/expression/mixins/additionexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/blockdiagexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/cacheexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/combinationsexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/derivativeexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/determinantexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/diagexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/divergenceexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/divisionexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/elemmultexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/evalexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/expressionbasemixin.py2
-rw-r--r--polymatrix/expression/mixins/eyeexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/filterexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/filterlinearpartexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/fromsymmetricmatrixexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/fromtermsexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/fromtupleexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/getitemexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/halfnewtonpolytopeexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/legendreseriesmixin.py2
-rw-r--r--polymatrix/expression/mixins/linearinexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/linearmatrixinexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/linearmonomialsexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/matrixmultexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/maxdegreeexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/maxexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/parametrizeexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/parametrizematrixexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/productexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/quadraticinexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/quadraticmonomialsexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/repmatexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/reshapeexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/setelementatexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/squeezeexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/substituteexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/subtractmonomialsexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/sumexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/symmetricexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/toconstantexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/toquadraticexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/tosortedvariablesmixin.py2
-rw-r--r--polymatrix/expression/mixins/tosymmetricmatrixexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/transposeexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/truncateexprmixin.py2
-rw-r--r--polymatrix/expression/mixins/vstackexprmixin.py2
-rw-r--r--polymatrix/expression/to.py2
-rw-r--r--polymatrix/expression/utils/getderivativemonomials.py2
-rw-r--r--polymatrix/expression/utils/getmonomialindices.py2
-rw-r--r--polymatrix/expressionstate/abc.py4
-rw-r--r--polymatrix/expressionstate/expressionstate.py4
-rw-r--r--polymatrix/expressionstate/impl.py (renamed from polymatrix/expressionstate/impl/expressionstateimpl.py)5
-rw-r--r--polymatrix/expressionstate/impl/__init__.py0
-rw-r--r--polymatrix/expressionstate/init.py (renamed from polymatrix/expressionstate/init/initexpressionstate.py)2
-rw-r--r--polymatrix/expressionstate/init/__init__.py0
-rw-r--r--polymatrix/expressionstate/mixins.py (renamed from polymatrix/expressionstate/mixins/expressionstatemixin.py)3
-rw-r--r--polymatrix/expressionstate/mixins/__init__.py0
62 files changed, 62 insertions, 66 deletions
diff --git a/polymatrix/__init__.py b/polymatrix/__init__.py
index 6c927d1..e513300 100644
--- a/polymatrix/__init__.py
+++ b/polymatrix/__init__.py
@@ -1,5 +1,5 @@
-from polymatrix.expressionstate.expressionstate import ExpressionState as internal_ExpressionState
-from polymatrix.expressionstate.init.initexpressionstate import init_expression_state as internal_init_expression_state
+from polymatrix.expressionstate.abc import ExpressionState as internal_ExpressionState
+from polymatrix.expressionstate.init import init_expression_state as internal_init_expression_state
from polymatrix.expression.expression import Expression as internal_Expression
from polymatrix.expression.from_ import from_ as internal_from
# from polymatrix.expression.from_ import from_sympy as internal_from_sympy
diff --git a/polymatrix/denserepr/from_.py b/polymatrix/denserepr/from_.py
index 52fda35..13b77b7 100644
--- a/polymatrix/denserepr/from_.py
+++ b/polymatrix/denserepr/from_.py
@@ -7,7 +7,7 @@ from polymatrix.denserepr.impl import DenseReprBufferImpl, DenseReprImpl
from polymatrix.expression.expression import Expression
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
from polymatrix.expression.utils.getvariableindices import get_variable_indices_from_variable
from polymatrix.statemonad.init.initstatemonad import init_state_monad
from polymatrix.statemonad.mixins.statemonadmixin import StateMonadMixin
diff --git a/polymatrix/denserepr/impl.py b/polymatrix/denserepr/impl.py
index 2b57e2a..5f54f86 100644
--- a/polymatrix/denserepr/impl.py
+++ b/polymatrix/denserepr/impl.py
@@ -4,7 +4,7 @@ import typing
import numpy as np
import scipy.sparse
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
from polymatrix.expression.utils.getvariableindices import get_variable_indices_from_variable
diff --git a/polymatrix/expression/expression.py b/polymatrix/expression/expression.py
index 22349c2..8cfcb82 100644
--- a/polymatrix/expression/expression.py
+++ b/polymatrix/expression/expression.py
@@ -11,7 +11,7 @@ from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.expression.op import diff, linear_in, linear_monomials, legendre
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
class Expression(
diff --git a/polymatrix/expression/mixins/additionexprmixin.py b/polymatrix/expression/mixins/additionexprmixin.py
index 6257d55..cf64254 100644
--- a/polymatrix/expression/mixins/additionexprmixin.py
+++ b/polymatrix/expression/mixins/additionexprmixin.py
@@ -8,7 +8,7 @@ from polymatrix.utils.tooperatorexception import to_operator_exception
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.polymatrix.mixins.polymatrixmixin import PolyMatrixMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
diff --git a/polymatrix/expression/mixins/blockdiagexprmixin.py b/polymatrix/expression/mixins/blockdiagexprmixin.py
index 0bafd0d..2226025 100644
--- a/polymatrix/expression/mixins/blockdiagexprmixin.py
+++ b/polymatrix/expression/mixins/blockdiagexprmixin.py
@@ -6,7 +6,7 @@ from polymatrix.polymatrix.mixins.polymatrixmixin import PolyMatrixMixin
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
class BlockDiagExprMixin(ExpressionBaseMixin):
diff --git a/polymatrix/expression/mixins/cacheexprmixin.py b/polymatrix/expression/mixins/cacheexprmixin.py
index 7a92259..55df49e 100644
--- a/polymatrix/expression/mixins/cacheexprmixin.py
+++ b/polymatrix/expression/mixins/cacheexprmixin.py
@@ -5,7 +5,7 @@ from polymatrix.polymatrix.mixins.polymatrixasdictmixin import PolyMatrixAsDictM
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
-from polymatrix.expressionstate.mixins.expressionstatemixin import ExpressionStateMixin
+from polymatrix.expressionstate.mixins import ExpressionStateMixin
from polymatrix.polymatrix.mixins.polymatrixmixin import PolyMatrixMixin
diff --git a/polymatrix/expression/mixins/combinationsexprmixin.py b/polymatrix/expression/mixins/combinationsexprmixin.py
index a9cc247..e513e8b 100644
--- a/polymatrix/expression/mixins/combinationsexprmixin.py
+++ b/polymatrix/expression/mixins/combinationsexprmixin.py
@@ -5,7 +5,7 @@ import itertools
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
from polymatrix.expression.utils.multiplymonomials import multiply_monomials
diff --git a/polymatrix/expression/mixins/derivativeexprmixin.py b/polymatrix/expression/mixins/derivativeexprmixin.py
index 15873b6..940516a 100644
--- a/polymatrix/expression/mixins/derivativeexprmixin.py
+++ b/polymatrix/expression/mixins/derivativeexprmixin.py
@@ -5,7 +5,7 @@ import typing
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
from polymatrix.expression.utils.getderivativemonomials import get_derivative_monomials
from polymatrix.expression.utils.getvariableindices import get_variable_indices_from_variable
from polymatrix.utils.getstacklines import FrameSummary
diff --git a/polymatrix/expression/mixins/determinantexprmixin.py b/polymatrix/expression/mixins/determinantexprmixin.py
index 79defa9..0adc589 100644
--- a/polymatrix/expression/mixins/determinantexprmixin.py
+++ b/polymatrix/expression/mixins/determinantexprmixin.py
@@ -7,7 +7,7 @@ from numpy import var
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
class DeterminantExprMixin(ExpressionBaseMixin):
diff --git a/polymatrix/expression/mixins/diagexprmixin.py b/polymatrix/expression/mixins/diagexprmixin.py
index 6651e13..497fa08 100644
--- a/polymatrix/expression/mixins/diagexprmixin.py
+++ b/polymatrix/expression/mixins/diagexprmixin.py
@@ -2,7 +2,7 @@ import abc
import dataclassabc
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
-from polymatrix.expressionstate.mixins.expressionstatemixin import ExpressionStateMixin
+from polymatrix.expressionstate.mixins import ExpressionStateMixin
from polymatrix.polymatrix.mixins.polymatrixmixin import PolyMatrixMixin
class DiagExprMixin(ExpressionBaseMixin):
diff --git a/polymatrix/expression/mixins/divergenceexprmixin.py b/polymatrix/expression/mixins/divergenceexprmixin.py
index 8ada607..1cf55b9 100644
--- a/polymatrix/expression/mixins/divergenceexprmixin.py
+++ b/polymatrix/expression/mixins/divergenceexprmixin.py
@@ -6,7 +6,7 @@ import typing
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
from polymatrix.expression.utils.getderivativemonomials import get_derivative_monomials
from polymatrix.expression.utils.getvariableindices import get_variable_indices_from_variable
diff --git a/polymatrix/expression/mixins/divisionexprmixin.py b/polymatrix/expression/mixins/divisionexprmixin.py
index 29f6d6d..2321fe7 100644
--- a/polymatrix/expression/mixins/divisionexprmixin.py
+++ b/polymatrix/expression/mixins/divisionexprmixin.py
@@ -8,7 +8,7 @@ from polymatrix.utils.tooperatorexception import to_operator_exception
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
class DivisionExprMixin(ExpressionBaseMixin):
diff --git a/polymatrix/expression/mixins/elemmultexprmixin.py b/polymatrix/expression/mixins/elemmultexprmixin.py
index 37c6f6f..4ea6cfa 100644
--- a/polymatrix/expression/mixins/elemmultexprmixin.py
+++ b/polymatrix/expression/mixins/elemmultexprmixin.py
@@ -8,7 +8,7 @@ from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.polymatrix.mixins.polymatrixmixin import PolyMatrixMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
from polymatrix.expression.utils.mergemonomialindices import merge_monomial_indices
diff --git a/polymatrix/expression/mixins/evalexprmixin.py b/polymatrix/expression/mixins/evalexprmixin.py
index e769d8b..7c8ac67 100644
--- a/polymatrix/expression/mixins/evalexprmixin.py
+++ b/polymatrix/expression/mixins/evalexprmixin.py
@@ -6,7 +6,7 @@ import math
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
from polymatrix.expression.utils.getvariableindices import get_variable_indices_from_variable
diff --git a/polymatrix/expression/mixins/expressionbasemixin.py b/polymatrix/expression/mixins/expressionbasemixin.py
index 8aedc25..58d6aba 100644
--- a/polymatrix/expression/mixins/expressionbasemixin.py
+++ b/polymatrix/expression/mixins/expressionbasemixin.py
@@ -1,6 +1,6 @@
import abc
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
from polymatrix.polymatrix.polymatrix import PolyMatrix
diff --git a/polymatrix/expression/mixins/eyeexprmixin.py b/polymatrix/expression/mixins/eyeexprmixin.py
index 7d844ce..d036e82 100644
--- a/polymatrix/expression/mixins/eyeexprmixin.py
+++ b/polymatrix/expression/mixins/eyeexprmixin.py
@@ -6,7 +6,7 @@ from polymatrix.polymatrix.mixins.polymatrixmixin import PolyMatrixMixin
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
class EyeExprMixin(ExpressionBaseMixin):
diff --git a/polymatrix/expression/mixins/filterexprmixin.py b/polymatrix/expression/mixins/filterexprmixin.py
index ec549a8..07089a0 100644
--- a/polymatrix/expression/mixins/filterexprmixin.py
+++ b/polymatrix/expression/mixins/filterexprmixin.py
@@ -4,7 +4,7 @@ import abc
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
class FilterExprMixin(ExpressionBaseMixin):
diff --git a/polymatrix/expression/mixins/filterlinearpartexprmixin.py b/polymatrix/expression/mixins/filterlinearpartexprmixin.py
index 6b80006..01891c6 100644
--- a/polymatrix/expression/mixins/filterlinearpartexprmixin.py
+++ b/polymatrix/expression/mixins/filterlinearpartexprmixin.py
@@ -5,7 +5,7 @@ import collections
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
# is this class needed?
diff --git a/polymatrix/expression/mixins/fromsymmetricmatrixexprmixin.py b/polymatrix/expression/mixins/fromsymmetricmatrixexprmixin.py
index 395eda9..78ca85b 100644
--- a/polymatrix/expression/mixins/fromsymmetricmatrixexprmixin.py
+++ b/polymatrix/expression/mixins/fromsymmetricmatrixexprmixin.py
@@ -6,7 +6,7 @@ from polymatrix.expression.utils.getvariableindices import get_variable_indices_
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
-from polymatrix.expressionstate.mixins.expressionstatemixin import ExpressionStateMixin
+from polymatrix.expressionstate.mixins import ExpressionStateMixin
from polymatrix.polymatrix.mixins.polymatrixmixin import PolyMatrixMixin
diff --git a/polymatrix/expression/mixins/fromtermsexprmixin.py b/polymatrix/expression/mixins/fromtermsexprmixin.py
index 9d1c220..e979434 100644
--- a/polymatrix/expression/mixins/fromtermsexprmixin.py
+++ b/polymatrix/expression/mixins/fromtermsexprmixin.py
@@ -5,7 +5,7 @@ import sympy
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
-from polymatrix.expressionstate.mixins.expressionstatemixin import ExpressionStateMixin
+from polymatrix.expressionstate.mixins import ExpressionStateMixin
from polymatrix.polymatrix.mixins.polymatrixmixin import PolyMatrixMixin
diff --git a/polymatrix/expression/mixins/fromtupleexprmixin.py b/polymatrix/expression/mixins/fromtupleexprmixin.py
index 551b20e..fa3dc43 100644
--- a/polymatrix/expression/mixins/fromtupleexprmixin.py
+++ b/polymatrix/expression/mixins/fromtupleexprmixin.py
@@ -8,7 +8,7 @@ from polymatrix.utils.getstacklines import FrameSummary
from polymatrix.utils.tooperatorexception import to_operator_exception
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.polymatrix.mixins.polymatrixmixin import PolyMatrixMixin
-from polymatrix.expressionstate.mixins.expressionstatemixin import ExpressionStateMixin
+from polymatrix.expressionstate.mixins import ExpressionStateMixin
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
diff --git a/polymatrix/expression/mixins/getitemexprmixin.py b/polymatrix/expression/mixins/getitemexprmixin.py
index 4ac9aff..d5d2279 100644
--- a/polymatrix/expression/mixins/getitemexprmixin.py
+++ b/polymatrix/expression/mixins/getitemexprmixin.py
@@ -7,7 +7,7 @@ from polymatrix.polymatrix.mixins.polymatrixmixin import PolyMatrixMixin
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
class GetItemExprMixin(ExpressionBaseMixin):
diff --git a/polymatrix/expression/mixins/halfnewtonpolytopeexprmixin.py b/polymatrix/expression/mixins/halfnewtonpolytopeexprmixin.py
index ed1f6d9..ce5abcf 100644
--- a/polymatrix/expression/mixins/halfnewtonpolytopeexprmixin.py
+++ b/polymatrix/expression/mixins/halfnewtonpolytopeexprmixin.py
@@ -8,7 +8,7 @@ from polymatrix.expression.utils.getvariableindices import get_variable_indices_
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
-from polymatrix.expressionstate.mixins.expressionstatemixin import ExpressionStateMixin
+from polymatrix.expressionstate.mixins import ExpressionStateMixin
from polymatrix.polymatrix.mixins.polymatrixmixin import PolyMatrixMixin
diff --git a/polymatrix/expression/mixins/legendreseriesmixin.py b/polymatrix/expression/mixins/legendreseriesmixin.py
index 3232207..22b7253 100644
--- a/polymatrix/expression/mixins/legendreseriesmixin.py
+++ b/polymatrix/expression/mixins/legendreseriesmixin.py
@@ -3,7 +3,7 @@ import abc
from polymatrix.utils.getstacklines import FrameSummary
from polymatrix.polymatrix.polymatrix import PolyMatrix
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
diff --git a/polymatrix/expression/mixins/linearinexprmixin.py b/polymatrix/expression/mixins/linearinexprmixin.py
index 9bcabbe..dedbd70 100644
--- a/polymatrix/expression/mixins/linearinexprmixin.py
+++ b/polymatrix/expression/mixins/linearinexprmixin.py
@@ -5,7 +5,7 @@ import collections
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
from polymatrix.expression.utils.getmonomialindices import get_monomial_indices
from polymatrix.expression.utils.getvariableindices import get_variable_indices_from_variable
diff --git a/polymatrix/expression/mixins/linearmatrixinexprmixin.py b/polymatrix/expression/mixins/linearmatrixinexprmixin.py
index f5bd18f..aa728d0 100644
--- a/polymatrix/expression/mixins/linearmatrixinexprmixin.py
+++ b/polymatrix/expression/mixins/linearmatrixinexprmixin.py
@@ -6,7 +6,7 @@ from numpy import var
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
from polymatrix.expression.utils.getvariableindices import get_variable_indices_from_variable
diff --git a/polymatrix/expression/mixins/linearmonomialsexprmixin.py b/polymatrix/expression/mixins/linearmonomialsexprmixin.py
index 350ac6d..1020946 100644
--- a/polymatrix/expression/mixins/linearmonomialsexprmixin.py
+++ b/polymatrix/expression/mixins/linearmonomialsexprmixin.py
@@ -4,7 +4,7 @@ import dataclasses
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
-from polymatrix.expressionstate.mixins.expressionstatemixin import ExpressionStateMixin
+from polymatrix.expressionstate.mixins import ExpressionStateMixin
from polymatrix.polymatrix.mixins.polymatrixmixin import PolyMatrixMixin
from polymatrix.expression.utils.getvariableindices import get_variable_indices_from_variable
from polymatrix.expression.utils.sortmonomials import sort_monomials
diff --git a/polymatrix/expression/mixins/matrixmultexprmixin.py b/polymatrix/expression/mixins/matrixmultexprmixin.py
index 98527e7..cede447 100644
--- a/polymatrix/expression/mixins/matrixmultexprmixin.py
+++ b/polymatrix/expression/mixins/matrixmultexprmixin.py
@@ -5,7 +5,7 @@ from polymatrix.utils.getstacklines import FrameSummary
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
from polymatrix.expression.utils.multiplypolynomial import multiply_polynomial
from polymatrix.utils.tooperatorexception import to_operator_exception
diff --git a/polymatrix/expression/mixins/maxdegreeexprmixin.py b/polymatrix/expression/mixins/maxdegreeexprmixin.py
index b21c157..9f8d647 100644
--- a/polymatrix/expression/mixins/maxdegreeexprmixin.py
+++ b/polymatrix/expression/mixins/maxdegreeexprmixin.py
@@ -4,7 +4,7 @@ import abc
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
class MaxDegreeExprMixin(ExpressionBaseMixin):
diff --git a/polymatrix/expression/mixins/maxexprmixin.py b/polymatrix/expression/mixins/maxexprmixin.py
index 2ab4cad..884c911 100644
--- a/polymatrix/expression/mixins/maxexprmixin.py
+++ b/polymatrix/expression/mixins/maxexprmixin.py
@@ -3,7 +3,7 @@ import abc
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
-from polymatrix.expressionstate.mixins.expressionstatemixin import ExpressionStateMixin
+from polymatrix.expressionstate.mixins import ExpressionStateMixin
from polymatrix.polymatrix.mixins.polymatrixmixin import PolyMatrixMixin
diff --git a/polymatrix/expression/mixins/parametrizeexprmixin.py b/polymatrix/expression/mixins/parametrizeexprmixin.py
index 198877e..ad2fce1 100644
--- a/polymatrix/expression/mixins/parametrizeexprmixin.py
+++ b/polymatrix/expression/mixins/parametrizeexprmixin.py
@@ -4,7 +4,7 @@ import dataclasses
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
-from polymatrix.expressionstate.mixins.expressionstatemixin import ExpressionStateMixin
+from polymatrix.expressionstate.mixins import ExpressionStateMixin
from polymatrix.polymatrix.mixins.polymatrixmixin import PolyMatrixMixin
diff --git a/polymatrix/expression/mixins/parametrizematrixexprmixin.py b/polymatrix/expression/mixins/parametrizematrixexprmixin.py
index de7be88..d3d2694 100644
--- a/polymatrix/expression/mixins/parametrizematrixexprmixin.py
+++ b/polymatrix/expression/mixins/parametrizematrixexprmixin.py
@@ -4,7 +4,7 @@ import dataclasses
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
-from polymatrix.expressionstate.mixins.expressionstatemixin import ExpressionStateMixin
+from polymatrix.expressionstate.mixins import ExpressionStateMixin
from polymatrix.polymatrix.mixins.polymatrixmixin import PolyMatrixMixin
diff --git a/polymatrix/expression/mixins/productexprmixin.py b/polymatrix/expression/mixins/productexprmixin.py
index 8299683..c11c416 100644
--- a/polymatrix/expression/mixins/productexprmixin.py
+++ b/polymatrix/expression/mixins/productexprmixin.py
@@ -6,7 +6,7 @@ from polymatrix.utils.getstacklines import FrameSummary
from polymatrix.utils.tooperatorexception import to_operator_exception
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
from polymatrix.expression.utils.multiplymonomials import multiply_monomials
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
diff --git a/polymatrix/expression/mixins/quadraticinexprmixin.py b/polymatrix/expression/mixins/quadraticinexprmixin.py
index 052124f..da7d130 100644
--- a/polymatrix/expression/mixins/quadraticinexprmixin.py
+++ b/polymatrix/expression/mixins/quadraticinexprmixin.py
@@ -5,7 +5,7 @@ import collections
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
from polymatrix.expression.utils.getmonomialindices import get_monomial_indices
from polymatrix.expression.utils.getvariableindices import get_variable_indices_from_variable
from polymatrix.expression.utils.splitmonomialindices import split_monomial_indices
diff --git a/polymatrix/expression/mixins/quadraticmonomialsexprmixin.py b/polymatrix/expression/mixins/quadraticmonomialsexprmixin.py
index 81fbcb9..71abc93 100644
--- a/polymatrix/expression/mixins/quadraticmonomialsexprmixin.py
+++ b/polymatrix/expression/mixins/quadraticmonomialsexprmixin.py
@@ -4,7 +4,7 @@ import dataclasses
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
-from polymatrix.expressionstate.mixins.expressionstatemixin import ExpressionStateMixin
+from polymatrix.expressionstate.mixins import ExpressionStateMixin
from polymatrix.polymatrix.mixins.polymatrixmixin import PolyMatrixMixin
from polymatrix.expression.utils.getvariableindices import get_variable_indices_from_variable
from polymatrix.expression.utils.splitmonomialindices import split_monomial_indices
diff --git a/polymatrix/expression/mixins/repmatexprmixin.py b/polymatrix/expression/mixins/repmatexprmixin.py
index 8ed4811..00eaee2 100644
--- a/polymatrix/expression/mixins/repmatexprmixin.py
+++ b/polymatrix/expression/mixins/repmatexprmixin.py
@@ -2,7 +2,7 @@ import abc
import dataclassabc
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
-from polymatrix.expressionstate.mixins.expressionstatemixin import ExpressionStateMixin
+from polymatrix.expressionstate.mixins import ExpressionStateMixin
from polymatrix.polymatrix.mixins.polymatrixmixin import PolyMatrixMixin
class RepMatExprMixin(ExpressionBaseMixin):
diff --git a/polymatrix/expression/mixins/reshapeexprmixin.py b/polymatrix/expression/mixins/reshapeexprmixin.py
index 3f2e837..4377e31 100644
--- a/polymatrix/expression/mixins/reshapeexprmixin.py
+++ b/polymatrix/expression/mixins/reshapeexprmixin.py
@@ -6,7 +6,7 @@ import dataclassabc
import numpy as np
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
-from polymatrix.expressionstate.mixins.expressionstatemixin import ExpressionStateMixin
+from polymatrix.expressionstate.mixins import ExpressionStateMixin
from polymatrix.polymatrix.mixins.polymatrixmixin import PolyMatrixMixin
class ReshapeExprMixin(ExpressionBaseMixin):
diff --git a/polymatrix/expression/mixins/setelementatexprmixin.py b/polymatrix/expression/mixins/setelementatexprmixin.py
index 8af695c..4757a72 100644
--- a/polymatrix/expression/mixins/setelementatexprmixin.py
+++ b/polymatrix/expression/mixins/setelementatexprmixin.py
@@ -8,7 +8,7 @@ from polymatrix.polymatrix.mixins.polymatrixmixin import PolyMatrixMixin
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
class SetElementAtExprMixin(ExpressionBaseMixin):
diff --git a/polymatrix/expression/mixins/squeezeexprmixin.py b/polymatrix/expression/mixins/squeezeexprmixin.py
index 6800890..2a8d849 100644
--- a/polymatrix/expression/mixins/squeezeexprmixin.py
+++ b/polymatrix/expression/mixins/squeezeexprmixin.py
@@ -4,7 +4,7 @@ import abc
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
# remove?
diff --git a/polymatrix/expression/mixins/substituteexprmixin.py b/polymatrix/expression/mixins/substituteexprmixin.py
index 432c9c6..b2e086d 100644
--- a/polymatrix/expression/mixins/substituteexprmixin.py
+++ b/polymatrix/expression/mixins/substituteexprmixin.py
@@ -7,7 +7,7 @@ import typing
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
from polymatrix.expression.utils.getvariableindices import get_variable_indices_from_variable
from polymatrix.expression.utils.multiplypolynomial import multiply_polynomial
diff --git a/polymatrix/expression/mixins/subtractmonomialsexprmixin.py b/polymatrix/expression/mixins/subtractmonomialsexprmixin.py
index 09f71b1..e48482e 100644
--- a/polymatrix/expression/mixins/subtractmonomialsexprmixin.py
+++ b/polymatrix/expression/mixins/subtractmonomialsexprmixin.py
@@ -4,7 +4,7 @@ import dataclasses
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
-from polymatrix.expressionstate.mixins.expressionstatemixin import ExpressionStateMixin
+from polymatrix.expressionstate.mixins import ExpressionStateMixin
from polymatrix.polymatrix.mixins.polymatrixmixin import PolyMatrixMixin
from polymatrix.expression.utils.getmonomialindices import get_monomial_indices
from polymatrix.expression.utils.sortmonomials import sort_monomials
diff --git a/polymatrix/expression/mixins/sumexprmixin.py b/polymatrix/expression/mixins/sumexprmixin.py
index 9e12e07..e60255e 100644
--- a/polymatrix/expression/mixins/sumexprmixin.py
+++ b/polymatrix/expression/mixins/sumexprmixin.py
@@ -5,7 +5,7 @@ import dataclasses
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
-from polymatrix.expressionstate.mixins.expressionstatemixin import ExpressionStateMixin
+from polymatrix.expressionstate.mixins import ExpressionStateMixin
from polymatrix.polymatrix.mixins.polymatrixmixin import PolyMatrixMixin
diff --git a/polymatrix/expression/mixins/symmetricexprmixin.py b/polymatrix/expression/mixins/symmetricexprmixin.py
index 2b191db..1624acc 100644
--- a/polymatrix/expression/mixins/symmetricexprmixin.py
+++ b/polymatrix/expression/mixins/symmetricexprmixin.py
@@ -7,7 +7,7 @@ from polymatrix.polymatrix.mixins.polymatrixmixin import PolyMatrixMixin
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
class SymmetricExprMixin(ExpressionBaseMixin):
diff --git a/polymatrix/expression/mixins/toconstantexprmixin.py b/polymatrix/expression/mixins/toconstantexprmixin.py
index 91fbb2b..d8c055b 100644
--- a/polymatrix/expression/mixins/toconstantexprmixin.py
+++ b/polymatrix/expression/mixins/toconstantexprmixin.py
@@ -5,7 +5,7 @@ import collections
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
class ToConstantExprMixin(ExpressionBaseMixin):
diff --git a/polymatrix/expression/mixins/toquadraticexprmixin.py b/polymatrix/expression/mixins/toquadraticexprmixin.py
index 2bcaacb..63f3343 100644
--- a/polymatrix/expression/mixins/toquadraticexprmixin.py
+++ b/polymatrix/expression/mixins/toquadraticexprmixin.py
@@ -6,7 +6,7 @@ import dataclasses
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
# to be deleted?
diff --git a/polymatrix/expression/mixins/tosortedvariablesmixin.py b/polymatrix/expression/mixins/tosortedvariablesmixin.py
index d0a5d79..65f27f1 100644
--- a/polymatrix/expression/mixins/tosortedvariablesmixin.py
+++ b/polymatrix/expression/mixins/tosortedvariablesmixin.py
@@ -5,7 +5,7 @@ from polymatrix.expression.utils.getvariableindices import get_variable_indices_
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
# to be deleted?
diff --git a/polymatrix/expression/mixins/tosymmetricmatrixexprmixin.py b/polymatrix/expression/mixins/tosymmetricmatrixexprmixin.py
index a34c2b3..d8d1dbe 100644
--- a/polymatrix/expression/mixins/tosymmetricmatrixexprmixin.py
+++ b/polymatrix/expression/mixins/tosymmetricmatrixexprmixin.py
@@ -4,7 +4,7 @@ import abc
from polymatrix.expression.utils.getvariableindices import get_variable_indices_from_variable
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
-from polymatrix.expressionstate.mixins.expressionstatemixin import ExpressionStateMixin
+from polymatrix.expressionstate.mixins import ExpressionStateMixin
from polymatrix.polymatrix.mixins.polymatrixmixin import PolyMatrixMixin
diff --git a/polymatrix/expression/mixins/transposeexprmixin.py b/polymatrix/expression/mixins/transposeexprmixin.py
index 7c60daa..858136b 100644
--- a/polymatrix/expression/mixins/transposeexprmixin.py
+++ b/polymatrix/expression/mixins/transposeexprmixin.py
@@ -8,7 +8,7 @@ from polymatrix.polymatrix.mixins.polymatrixmixin import PolyMatrixMixin
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
class TransposeExprMixin(ExpressionBaseMixin):
diff --git a/polymatrix/expression/mixins/truncateexprmixin.py b/polymatrix/expression/mixins/truncateexprmixin.py
index cadc856..8e01cf9 100644
--- a/polymatrix/expression/mixins/truncateexprmixin.py
+++ b/polymatrix/expression/mixins/truncateexprmixin.py
@@ -4,7 +4,7 @@ import abc
from polymatrix.polymatrix.init.initpolymatrix import init_poly_matrix
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
from polymatrix.expression.utils.getvariableindices import get_variable_indices_from_variable
diff --git a/polymatrix/expression/mixins/vstackexprmixin.py b/polymatrix/expression/mixins/vstackexprmixin.py
index e787495..ef842e0 100644
--- a/polymatrix/expression/mixins/vstackexprmixin.py
+++ b/polymatrix/expression/mixins/vstackexprmixin.py
@@ -6,7 +6,7 @@ from polymatrix.polymatrix.mixins.polymatrixmixin import PolyMatrixMixin
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
from polymatrix.polymatrix.polymatrix import PolyMatrix
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
class VStackExprMixin(ExpressionBaseMixin):
diff --git a/polymatrix/expression/to.py b/polymatrix/expression/to.py
index 53cd8a8..6d6286e 100644
--- a/polymatrix/expression/to.py
+++ b/polymatrix/expression/to.py
@@ -5,7 +5,7 @@ from polymatrix.expression.expression import Expression
from polymatrix.expression.mixins.parametrizeexprmixin import ParametrizeExprMixin
from polymatrix.expression.mixins.parametrizematrixexprmixin import ParametrizeMatrixExprMixin
from polymatrix.expression.utils.getvariableindices import get_variable_indices_from_variable
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
from polymatrix.statemonad.init.initstatemonad import init_state_monad
from polymatrix.statemonad.mixins.statemonadmixin import StateMonadMixin
diff --git a/polymatrix/expression/utils/getderivativemonomials.py b/polymatrix/expression/utils/getderivativemonomials.py
index 9bc1e1e..0b74135 100644
--- a/polymatrix/expression/utils/getderivativemonomials.py
+++ b/polymatrix/expression/utils/getderivativemonomials.py
@@ -2,7 +2,7 @@ import collections
import dataclasses
import itertools
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
def get_derivative_monomials(
diff --git a/polymatrix/expression/utils/getmonomialindices.py b/polymatrix/expression/utils/getmonomialindices.py
index ac6d5f7..42f9ca7 100644
--- a/polymatrix/expression/utils/getmonomialindices.py
+++ b/polymatrix/expression/utils/getmonomialindices.py
@@ -1,4 +1,4 @@
-from polymatrix.expressionstate.expressionstate import ExpressionState
+from polymatrix.expressionstate.abc import ExpressionState
from polymatrix.expression.mixins.expressionbasemixin import ExpressionBaseMixin
diff --git a/polymatrix/expressionstate/abc.py b/polymatrix/expressionstate/abc.py
new file mode 100644
index 0000000..a2e1154
--- /dev/null
+++ b/polymatrix/expressionstate/abc.py
@@ -0,0 +1,4 @@
+from polymatrix.expressionstate.mixins import ExpressionStateMixin
+
+class ExpressionState(ExpressionStateMixin):
+ pass
diff --git a/polymatrix/expressionstate/expressionstate.py b/polymatrix/expressionstate/expressionstate.py
deleted file mode 100644
index 342432a..0000000
--- a/polymatrix/expressionstate/expressionstate.py
+++ /dev/null
@@ -1,4 +0,0 @@
-from polymatrix.expressionstate.mixins.expressionstatemixin import ExpressionStateMixin
-
-class ExpressionState(ExpressionStateMixin):
- pass
diff --git a/polymatrix/expressionstate/impl/expressionstateimpl.py b/polymatrix/expressionstate/impl.py
index 3890a27..3188b5d 100644
--- a/polymatrix/expressionstate/impl/expressionstateimpl.py
+++ b/polymatrix/expressionstate/impl.py
@@ -1,8 +1,7 @@
-from functools import cached_property
import dataclassabc
-from polymatrix.expressionstate.expressionstate import ExpressionState
-from typing import Optional
+from polymatrix.expressionstate.abc import ExpressionState
+
@dataclassabc.dataclassabc(frozen=True)
class ExpressionStateImpl(ExpressionState):
diff --git a/polymatrix/expressionstate/impl/__init__.py b/polymatrix/expressionstate/impl/__init__.py
deleted file mode 100644
index e69de29..0000000
--- a/polymatrix/expressionstate/impl/__init__.py
+++ /dev/null
diff --git a/polymatrix/expressionstate/init/initexpressionstate.py b/polymatrix/expressionstate/init.py
index 7e868da..1748d43 100644
--- a/polymatrix/expressionstate/init/initexpressionstate.py
+++ b/polymatrix/expressionstate/init.py
@@ -1,4 +1,4 @@
-from polymatrix.expressionstate.impl.expressionstateimpl import ExpressionStateImpl
+from polymatrix.expressionstate.impl import ExpressionStateImpl
def init_expression_state(
diff --git a/polymatrix/expressionstate/init/__init__.py b/polymatrix/expressionstate/init/__init__.py
deleted file mode 100644
index e69de29..0000000
--- a/polymatrix/expressionstate/init/__init__.py
+++ /dev/null
diff --git a/polymatrix/expressionstate/mixins/expressionstatemixin.py b/polymatrix/expressionstate/mixins.py
index aaaa8ba..538f652 100644
--- a/polymatrix/expressionstate/mixins/expressionstatemixin.py
+++ b/polymatrix/expressionstate/mixins.py
@@ -1,10 +1,7 @@
import abc
-import itertools
import dataclasses
import typing
-import sympy
-
from polymatrix.statemonad.mixins.statemixin import StateCacheMixin
diff --git a/polymatrix/expressionstate/mixins/__init__.py b/polymatrix/expressionstate/mixins/__init__.py
deleted file mode 100644
index e69de29..0000000
--- a/polymatrix/expressionstate/mixins/__init__.py
+++ /dev/null