From d50b0af998077d2a885f59f964f200af7fbb4beb Mon Sep 17 00:00:00 2001
From: Floze <88098863+floze-the-genius@users.noreply.github.com>
Date: Thu, 13 Aug 2026 21:34:04 +0400
Subject: [PATCH 1/2] chore: remove unused Python dependencies

---
 channel-transport-particles/fluid-nutils/fluid.py          | 1 -
 channel-transport-reaction/plot.py                         | 1 -
 channel-transport/fluid-nutils/fluid.py                    | 1 -
 channel-transport/transport-nutils/transport.py            | 2 --
 elastic-tube-1d/fluid-python/FluidSolver.py                | 4 +---
 elastic-tube-1d/plot-vtk.py                                | 3 +--
 elastic-tube-1d/solid-python/SolidSolver.py                | 2 --
 elastic-tube-3d/solid-fenics/solid.py                      | 3 +--
 flow-over-heated-plate/solid-fenics/solid.py               | 7 +++----
 flow-over-heated-plate/solid-fenicsx/solid.py              | 2 +-
 flow-over-heated-plate/solid-nutils/solid.py               | 1 -
 partitioned-burgers-1d/neumann-surrogate/model.py          | 1 -
 partitioned-burgers-1d/solver-scipy/solver.py              | 1 -
 .../solver-fenicsx/problem_setup.py                        | 3 ---
 .../solver-fenics/problem_setup.py                         | 3 +--
 partitioned-heat-conduction-overlap/solver-fenics/heat.py  | 3 +--
 .../solver-fenics/heatHigherOrder.py                       | 2 +-
 partitioned-heat-conduction/solver-fenics/problem_setup.py | 2 +-
 partitioned-heat-conduction/solver-fenics/utils/utils.py   | 1 -
 partitioned-heat-conduction/solver-fenicsx/heat.py         | 2 +-
 .../solver-fenicsx/problem_setup.py                        | 3 +--
 .../solver-fluid1d-nutils/Fluid1D.py                       | 1 -
 perpendicular-flap/fluid-fake/fake.py                      | 1 -
 perpendicular-flap/solid-fenics/requirements-reference.txt | 3 +--
 perpendicular-flap/solid-fenics/requirements.txt           | 1 -
 perpendicular-flap/solid-fenics/solid.py                   | 5 +----
 perpendicular-flap/solid-nutils/solid.py                   | 2 +-
 tools/tests/metadata_parser/metdata.py                     | 2 +-
 tools/tests/systemtests.py                                 | 2 +-
 tools/tests/systemtests/TestSuite.py                       | 1 -
 turek-hron-fsi3/fluid-nutils/fluid.py                      | 3 +--
 turek-hron-fsi3/solid-nutils/solid.py                      | 3 +--
 .../solver-fenics/requirements-reference.txt               | 3 +--
 volume-coupled-diffusion/solver-fenics/requirements.txt    | 3 +--
 .../solver-fenics/volume-coupled-diffusion.py              | 1 -
 volume-coupled-flow/source-nutils/source.py                | 4 +---
 water-hammer/solver-fluid1d-nutils/Fluid1D.py              | 1 -
 37 files changed, 23 insertions(+), 61 deletions(-)

diff --git a/channel-transport-particles/fluid-nutils/fluid.py b/channel-transport-particles/fluid-nutils/fluid.py
index aa91605df..8d9a8599e 100644
--- a/channel-transport-particles/fluid-nutils/fluid.py
+++ b/channel-transport-particles/fluid-nutils/fluid.py
@@ -8,7 +8,6 @@
 import treelog as log
 import numpy as np
 import precice
-from mpi4py import MPI
 
 
 def main():
diff --git a/channel-transport-reaction/plot.py b/channel-transport-reaction/plot.py
index fef7fdd7e..8e37c839f 100644
--- a/channel-transport-reaction/plot.py
+++ b/channel-transport-reaction/plot.py
@@ -1,6 +1,5 @@
 import pandas as pd
 import matplotlib.pyplot as plt
-import numpy as np
 
 plt.rcParams["figure.figsize"] = [7.50, 3.50]
 plt.rcParams["figure.autolayout"] = True
diff --git a/channel-transport/fluid-nutils/fluid.py b/channel-transport/fluid-nutils/fluid.py
index aa91605df..8d9a8599e 100644
--- a/channel-transport/fluid-nutils/fluid.py
+++ b/channel-transport/fluid-nutils/fluid.py
@@ -8,7 +8,6 @@
 import treelog as log
 import numpy as np
 import precice
-from mpi4py import MPI
 
 
 def main():
diff --git a/channel-transport/transport-nutils/transport.py b/channel-transport/transport-nutils/transport.py
index 53c19a0c8..566c4ecf8 100644
--- a/channel-transport/transport-nutils/transport.py
+++ b/channel-transport/transport-nutils/transport.py
@@ -6,11 +6,9 @@
 
 from nutils import function, mesh, cli, solver, export
 import treelog as log
-import argparse
 import numpy as np
 import json
 import precice
-from mpi4py import MPI
 
 
 def reinitialize_namespace(domain, geom):
diff --git a/elastic-tube-1d/fluid-python/FluidSolver.py b/elastic-tube-1d/fluid-python/FluidSolver.py
index e9ae8c496..93ffd5ece 100644
--- a/elastic-tube-1d/fluid-python/FluidSolver.py
+++ b/elastic-tube-1d/fluid-python/FluidSolver.py
@@ -1,9 +1,7 @@
 from __future__ import division, print_function
-import os
-import sys
 import argparse
 import outputConfiguration as config
-from thetaScheme import perform_partitioned_implicit_trapezoidal_rule_step, perform_partitioned_implicit_euler_step
+from thetaScheme import perform_partitioned_implicit_euler_step
 import numpy as np
 import tubePlotting
 import matplotlib.pyplot as plt
diff --git a/elastic-tube-1d/plot-vtk.py b/elastic-tube-1d/plot-vtk.py
index 758a20986..4108cf8a8 100644
--- a/elastic-tube-1d/plot-vtk.py
+++ b/elastic-tube-1d/plot-vtk.py
@@ -2,10 +2,9 @@
 
 import vtk
 import numpy as np
-import os
 import sys
 import matplotlib.pyplot as plt
-from mpl_toolkits.mplot3d import Axes3D
+from mpl_toolkits.mplot3d import Axes3D  # noqa: F401 - registers projection='3d' on Matplotlib <3.2
 
 T = 100  # number of timesteps performed
 
diff --git a/elastic-tube-1d/solid-python/SolidSolver.py b/elastic-tube-1d/solid-python/SolidSolver.py
index 49cf36b83..4c1403cbc 100644
--- a/elastic-tube-1d/solid-python/SolidSolver.py
+++ b/elastic-tube-1d/solid-python/SolidSolver.py
@@ -1,7 +1,5 @@
 from __future__ import division, print_function
 
-import os
-import sys
 import argparse
 import numpy as np
 import precice
diff --git a/elastic-tube-3d/solid-fenics/solid.py b/elastic-tube-3d/solid-fenics/solid.py
index 54f18fd21..e4f1c87fa 100644
--- a/elastic-tube-3d/solid-fenics/solid.py
+++ b/elastic-tube-3d/solid-fenics/solid.py
@@ -1,6 +1,5 @@
 # Import required libs
-from fenics import Constant, Function, AutoSubDomain, VectorFunctionSpace, interpolate, \
-    TrialFunction, TestFunction, Point, Expression, DirichletBC, \
+from fenics import Constant, Function, AutoSubDomain, VectorFunctionSpace, TrialFunction, TestFunction, Point, DirichletBC, \
     Identity, inner, dx, ds, sym, grad, div, lhs, rhs, dot, File, solve, assemble_system
 from mshr import Cylinder, generate_mesh
 import numpy as np
diff --git a/flow-over-heated-plate/solid-fenics/solid.py b/flow-over-heated-plate/solid-fenics/solid.py
index f07cc29d5..7866a9476 100644
--- a/flow-over-heated-plate/solid-fenics/solid.py
+++ b/flow-over-heated-plate/solid-fenics/solid.py
@@ -3,10 +3,9 @@
 """
 
 from __future__ import print_function, division
-from fenics import Function, SubDomain, RectangleMesh, BoxMesh, FunctionSpace, VectorFunctionSpace, Point, \
-    Expression, Constant, DirichletBC, \
-    TrialFunction, TestFunction, File, solve, plot, lhs, rhs, grad, inner, dot, dx, ds, interpolate, project, \
-    near, MeshFunction, MPI
+from fenics import Function, SubDomain, RectangleMesh, FunctionSpace, VectorFunctionSpace, Point, \
+    Constant, DirichletBC, \
+    TrialFunction, TestFunction, File, solve, lhs, rhs, grad, inner, dot, dx, interpolate, near, MeshFunction, MPI
 from fenicsprecice import Adapter
 import numpy as np
 
diff --git a/flow-over-heated-plate/solid-fenicsx/solid.py b/flow-over-heated-plate/solid-fenicsx/solid.py
index 4345a686e..9f8719bcf 100644
--- a/flow-over-heated-plate/solid-fenicsx/solid.py
+++ b/flow-over-heated-plate/solid-fenicsx/solid.py
@@ -4,7 +4,7 @@
 from petsc4py import PETSc
 import ufl
 from dolfinx import fem, io, mesh as msh, default_scalar_type
-from dolfinx.fem.petsc import assemble_matrix, assemble_vector, apply_lifting, create_vector, set_bc, LinearProblem
+from dolfinx.fem.petsc import assemble_matrix, assemble_vector, apply_lifting, create_vector, set_bc
 from dolfinx.mesh import create_rectangle
 import basix
 from fenicsxprecice import Adapter, CouplingMesh
diff --git a/flow-over-heated-plate/solid-nutils/solid.py b/flow-over-heated-plate/solid-nutils/solid.py
index 37bdb4b75..106ddb536 100644
--- a/flow-over-heated-plate/solid-nutils/solid.py
+++ b/flow-over-heated-plate/solid-nutils/solid.py
@@ -4,7 +4,6 @@
 import treelog
 import numpy as np
 import precice
-from mpi4py import MPI
 
 
 def main():
diff --git a/partitioned-burgers-1d/neumann-surrogate/model.py b/partitioned-burgers-1d/neumann-surrogate/model.py
index ef6c9d6e6..8a76081d9 100644
--- a/partitioned-burgers-1d/neumann-surrogate/model.py
+++ b/partitioned-burgers-1d/neumann-surrogate/model.py
@@ -1,6 +1,5 @@
 import torch
 import torch.nn as nn
-import torch.nn.functional as F
 from torch.nn.utils import weight_norm
 
 
diff --git a/partitioned-burgers-1d/solver-scipy/solver.py b/partitioned-burgers-1d/solver-scipy/solver.py
index 3ca4564d7..045d6b89f 100644
--- a/partitioned-burgers-1d/solver-scipy/solver.py
+++ b/partitioned-burgers-1d/solver-scipy/solver.py
@@ -10,7 +10,6 @@
 # | bc_left |                          <u_interface>     |    <u_interface>                        | bc_right |
 """
 import numpy as np
-from scipy.integrate import solve_ivp
 from scipy.sparse import diags, identity
 from scipy.optimize import root
 import precice
diff --git a/partitioned-heat-conduction-3d/solver-fenicsx/problem_setup.py b/partitioned-heat-conduction-3d/solver-fenicsx/problem_setup.py
index 35719f452..1b344100b 100644
--- a/partitioned-heat-conduction-3d/solver-fenicsx/problem_setup.py
+++ b/partitioned-heat-conduction-3d/solver-fenicsx/problem_setup.py
@@ -2,11 +2,8 @@
 Problem setup for partitioned-heat-conduction/fenicsx tutorial
 """
 from dolfinx.io import gmsh as gmshio
-from dolfinx.mesh import DiagonalType, create_box
-import dolfinx.mesh
 from my_enums import DomainPart
 import numpy as np
-from mpi4py import MPI
 import gmsh
 
 
diff --git a/partitioned-heat-conduction-complex/solver-fenics/problem_setup.py b/partitioned-heat-conduction-complex/solver-fenics/problem_setup.py
index a8ddd54cc..0a0808ae6 100644
--- a/partitioned-heat-conduction-complex/solver-fenics/problem_setup.py
+++ b/partitioned-heat-conduction-complex/solver-fenics/problem_setup.py
@@ -2,10 +2,9 @@
 Problem setup for HT fenics-fenics tutorial
 """
 
-from fenics import SubDomain, Point, RectangleMesh, near, Function, VectorFunctionSpace, Expression
+from fenics import SubDomain, Point, RectangleMesh, near
 from my_enums import DomainPart, ProblemType
 import mshr
-import numpy as np
 
 y_bottom, y_top = 0, 1
 x_left, x_right = 0, 2
diff --git a/partitioned-heat-conduction-overlap/solver-fenics/heat.py b/partitioned-heat-conduction-overlap/solver-fenics/heat.py
index 9f296a8b8..83e92a259 100644
--- a/partitioned-heat-conduction-overlap/solver-fenics/heat.py
+++ b/partitioned-heat-conduction-overlap/solver-fenics/heat.py
@@ -23,7 +23,7 @@
 # The alternating Schwarz method is applied in the overlap domain where $x \in \left[1-\delta, 1+\delta\right]$.
 
 from __future__ import print_function, division
-from fenics import Function, FunctionSpace, Expression, Constant, DirichletBC, TrialFunction, TestFunction, File, solve, lhs, rhs, grad, inner, dot, dx, ds, interpolate
+from fenics import Function, FunctionSpace, Expression, Constant, DirichletBC, TrialFunction, TestFunction, File, solve, lhs, rhs, grad, dot, dx, interpolate
 from fenics import SubDomain, Point, RectangleMesh, near, Function, Expression
 from fenicsprecice import Adapter
 from errorcomputation import compute_errors
@@ -31,7 +31,6 @@
 import numpy as np
 from dolfin import dot
 from enum import Enum
-import sys
 
 
 class Participant(Enum):
diff --git a/partitioned-heat-conduction/solver-fenics/heatHigherOrder.py b/partitioned-heat-conduction/solver-fenics/heatHigherOrder.py
index 5311b4d97..40a324941 100644
--- a/partitioned-heat-conduction/solver-fenics/heatHigherOrder.py
+++ b/partitioned-heat-conduction/solver-fenics/heatHigherOrder.py
@@ -32,7 +32,7 @@
 
 from __future__ import print_function, division
 from fenics import Function, FunctionSpace, Expression, Constant, DirichletBC, TrialFunction, TestFunction, \
-    File, solve, lhs, rhs, grad, inner, dot, dx, ds, interpolate, VectorFunctionSpace, MeshFunction, MPI, MixedElement, split, project
+    File, solve, lhs, rhs, grad, inner, dx, ds, interpolate, VectorFunctionSpace, MeshFunction, MPI, MixedElement, split, project
 from fenicsprecice import Adapter
 from errorcomputation import compute_errors
 from my_enums import ProblemType, DomainPart
diff --git a/partitioned-heat-conduction/solver-fenics/problem_setup.py b/partitioned-heat-conduction/solver-fenics/problem_setup.py
index ff2996fce..bba4ed5f0 100644
--- a/partitioned-heat-conduction/solver-fenics/problem_setup.py
+++ b/partitioned-heat-conduction/solver-fenics/problem_setup.py
@@ -2,7 +2,7 @@
 Problem setup for partitioned-heat-conduction/fenics tutorial
 """
 
-from fenics import SubDomain, Point, RectangleMesh, near, Function, Expression
+from fenics import SubDomain, Point, RectangleMesh, near
 from my_enums import DomainPart
 
 
diff --git a/partitioned-heat-conduction/solver-fenics/utils/utils.py b/partitioned-heat-conduction/solver-fenics/utils/utils.py
index 477ebf224..21f1099bc 100644
--- a/partitioned-heat-conduction/solver-fenics/utils/utils.py
+++ b/partitioned-heat-conduction/solver-fenics/utils/utils.py
@@ -6,7 +6,6 @@
 import numpy as np
 import scipy.interpolate as interpol
 from fenics import *
-from sympy import ccode, diff
 
 
 def b_splines(precice, degree, dt):
diff --git a/partitioned-heat-conduction/solver-fenicsx/heat.py b/partitioned-heat-conduction/solver-fenicsx/heat.py
index 13bfb83ae..f71d12a17 100644
--- a/partitioned-heat-conduction/solver-fenicsx/heat.py
+++ b/partitioned-heat-conduction/solver-fenicsx/heat.py
@@ -29,7 +29,7 @@
 import basix.ufl
 from petsc4py import PETSc
 import ufl
-from dolfinx import fem, io, mesh as msh, geometry
+from dolfinx import fem, io, geometry
 from dolfinx.fem.petsc import assemble_matrix, assemble_vector, apply_lifting, create_vector, set_bc
 import basix
 from fenicsxprecice import Adapter, CouplingMesh
diff --git a/partitioned-heat-conduction/solver-fenicsx/problem_setup.py b/partitioned-heat-conduction/solver-fenicsx/problem_setup.py
index 4c7f40652..b033d2c55 100644
--- a/partitioned-heat-conduction/solver-fenicsx/problem_setup.py
+++ b/partitioned-heat-conduction/solver-fenicsx/problem_setup.py
@@ -1,12 +1,11 @@
 """
 Problem setup for partitioned-heat-conduction/fenicsx tutorial
 """
-from dolfinx.mesh import DiagonalType, create_rectangle
+from dolfinx.mesh import create_rectangle
 import dolfinx.mesh
 import dolfinx.cpp
 from my_enums import DomainPart
 import numpy as np
-from mpi4py import MPI
 
 
 y_bottom, y_top = 0, 1
diff --git a/partitioned-pipe-multiscale/solver-fluid1d-nutils/Fluid1D.py b/partitioned-pipe-multiscale/solver-fluid1d-nutils/Fluid1D.py
index 45685efe9..e4d305da5 100644
--- a/partitioned-pipe-multiscale/solver-fluid1d-nutils/Fluid1D.py
+++ b/partitioned-pipe-multiscale/solver-fluid1d-nutils/Fluid1D.py
@@ -1,5 +1,4 @@
 import numpy as np
-import matplotlib.pyplot as plt
 import treelog
 import precice
 from nutils import mesh, function, solver, cli
diff --git a/perpendicular-flap/fluid-fake/fake.py b/perpendicular-flap/fluid-fake/fake.py
index 498ec64fc..24922a118 100644
--- a/perpendicular-flap/fluid-fake/fake.py
+++ b/perpendicular-flap/fluid-fake/fake.py
@@ -1,6 +1,5 @@
 from __future__ import division
 
-import argparse
 import numpy as np
 import precice
 
diff --git a/perpendicular-flap/solid-fenics/requirements-reference.txt b/perpendicular-flap/solid-fenics/requirements-reference.txt
index 73c23a9a2..d70a123e3 100644
--- a/perpendicular-flap/solid-fenics/requirements-reference.txt
+++ b/perpendicular-flap/solid-fenics/requirements-reference.txt
@@ -2,11 +2,10 @@
 # Reference only: run scripts keep using loose requirements.txt constraints.
 # Generated by tools/releasing/update-requirements-reference.py — do not edit manually.
 # Source: perpendicular-flap/solid-fenics/requirements.txt
-# Generated: 2026-07-18T10:31:39Z
+# Generated: 2026-08-13T17:30:52Z
 
 fenicsprecice==2.3.0
 numpy==1.26.4
-matplotlib==3.11.1
 fenics-dijitso==2019.1.0
 fenics-ffc==2019.1.0.post0
 fenics-fiat==2019.1.0
diff --git a/perpendicular-flap/solid-fenics/requirements.txt b/perpendicular-flap/solid-fenics/requirements.txt
index 4ad93b856..145481082 100644
--- a/perpendicular-flap/solid-fenics/requirements.txt
+++ b/perpendicular-flap/solid-fenics/requirements.txt
@@ -1,6 +1,5 @@
 fenicsprecice~=2.2
 numpy >1, <2
-matplotlib>=3,<4
 
 # Assuming FEniCS from ppa:fenics-packages/fenics was installed https://fenicsproject.org/download/archive/
 # Use --system-site-packages in venv
diff --git a/perpendicular-flap/solid-fenics/solid.py b/perpendicular-flap/solid-fenics/solid.py
index dc07af7cc..8a54908af 100644
--- a/perpendicular-flap/solid-fenics/solid.py
+++ b/perpendicular-flap/solid-fenics/solid.py
@@ -7,12 +7,9 @@
 
 # Import required libs
 from fenics import Constant, Function, AutoSubDomain, RectangleMesh, VectorFunctionSpace, interpolate, \
-    TrialFunction, TestFunction, Point, Expression, DirichletBC, project, \
-    Identity, inner, dx, ds, sym, grad, div, lhs, rhs, dot, File, solve, assemble_system
+    TrialFunction, TestFunction, Point, Expression, DirichletBC, Identity, inner, dx, ds, sym, grad, div, lhs, rhs, dot, File, solve, assemble_system
 import numpy as np
-import matplotlib.pyplot as plt
 from fenicsprecice import Adapter
-from enum import Enum
 
 
 # define the two kinds of boundary: clamped and coupling Neumann Boundary
diff --git a/perpendicular-flap/solid-nutils/solid.py b/perpendicular-flap/solid-nutils/solid.py
index 3a76165ac..3b22102e8 100644
--- a/perpendicular-flap/solid-nutils/solid.py
+++ b/perpendicular-flap/solid-nutils/solid.py
@@ -1,6 +1,6 @@
 #! /usr/bin/env python3
 
-from nutils import mesh, function, solver, export, cli
+from nutils import mesh, function, solver, cli
 from nutils.expression_v2 import Namespace
 import numpy
 import treelog
diff --git a/tools/tests/metadata_parser/metdata.py b/tools/tests/metadata_parser/metdata.py
index 0375bf987..24b9e0333 100644
--- a/tools/tests/metadata_parser/metdata.py
+++ b/tools/tests/metadata_parser/metdata.py
@@ -1,6 +1,6 @@
 from dataclasses import dataclass, field
 from pathlib import Path
-from typing import List, Tuple, Optional, Dict
+from typing import List, Tuple, Optional
 import glob
 import yaml
 import itertools
diff --git a/tools/tests/systemtests.py b/tools/tests/systemtests.py
index 296b552d0..73301dbd4 100644
--- a/tools/tests/systemtests.py
+++ b/tools/tests/systemtests.py
@@ -4,7 +4,7 @@
 from systemtests.SystemtestArguments import SystemtestArguments
 from systemtests.Systemtest import Systemtest, GLOBAL_TIMEOUT, DEFAULT_FIELDCOMPARE_RTOL, display_systemtestresults_as_table
 from systemtests.TestSuite import TestSuites
-from metadata_parser.metdata import Tutorials, Case
+from metadata_parser.metdata import Tutorials
 import logging
 import time
 import os
diff --git a/tools/tests/systemtests/TestSuite.py b/tools/tests/systemtests/TestSuite.py
index adf063988..3c140169e 100644
--- a/tools/tests/systemtests/TestSuite.py
+++ b/tools/tests/systemtests/TestSuite.py
@@ -4,7 +4,6 @@
 from metadata_parser.metdata import (
     Tutorials,
     Tutorial,
-    Case,
     CaseCombination,
     ReferenceResult,
     Components,
diff --git a/turek-hron-fsi3/fluid-nutils/fluid.py b/turek-hron-fsi3/fluid-nutils/fluid.py
index 33de048cd..f972de70d 100644
--- a/turek-hron-fsi3/fluid-nutils/fluid.py
+++ b/turek-hron-fsi3/fluid-nutils/fluid.py
@@ -7,11 +7,10 @@
 from nutils import cli, export, function
 from nutils.mesh import gmsh
 from nutils.solver import System
-from nutils.SI import Length, Density, Viscosity, Velocity, Time, Stress, Acceleration
+from nutils.SI import Length, Density, Viscosity, Velocity, Time, Stress
 from nutils.expression_v2 import Namespace
 from collections import defaultdict, deque
 from dataclasses import dataclass
-from typing import Optional
 from pathlib import Path
 from itertools import count
 import treelog as log
diff --git a/turek-hron-fsi3/solid-nutils/solid.py b/turek-hron-fsi3/solid-nutils/solid.py
index bc085d46d..1df3c31a2 100644
--- a/turek-hron-fsi3/solid-nutils/solid.py
+++ b/turek-hron-fsi3/solid-nutils/solid.py
@@ -7,11 +7,10 @@
 from nutils import cli, export, function
 from nutils.mesh import gmsh
 from nutils.solver import System
-from nutils.SI import Length, Density, Viscosity, Velocity, Time, Stress, Acceleration, Pressure
+from nutils.SI import Length, Density, Time, Stress, Acceleration, Pressure
 from nutils.expression_v2 import Namespace
 from collections import defaultdict, deque
 from dataclasses import dataclass
-from typing import Optional
 from pathlib import Path
 from itertools import count
 import treelog as log
diff --git a/volume-coupled-diffusion/solver-fenics/requirements-reference.txt b/volume-coupled-diffusion/solver-fenics/requirements-reference.txt
index 4616b8b35..8eaf1cd85 100644
--- a/volume-coupled-diffusion/solver-fenics/requirements-reference.txt
+++ b/volume-coupled-diffusion/solver-fenics/requirements-reference.txt
@@ -2,10 +2,9 @@
 # Reference only: run scripts keep using loose requirements.txt constraints.
 # Generated by tools/releasing/update-requirements-reference.py — do not edit manually.
 # Source: volume-coupled-diffusion/solver-fenics/requirements.txt
-# Generated: 2026-07-18T10:31:39Z
+# Generated: 2026-08-13T17:30:54Z
 
 fenicsprecice==2.3.0
-numpy==1.26.4
 fenics-dijitso==2019.1.0
 fenics-ffc==2019.1.0.post0
 fenics-fiat==2019.1.0
diff --git a/volume-coupled-diffusion/solver-fenics/requirements.txt b/volume-coupled-diffusion/solver-fenics/requirements.txt
index 3350095be..b91eca847 100644
--- a/volume-coupled-diffusion/solver-fenics/requirements.txt
+++ b/volume-coupled-diffusion/solver-fenics/requirements.txt
@@ -1,9 +1,8 @@
 fenicsprecice~=2.0
-numpy >1, <2
 
 # Assuming FEniCS from ppa:fenics-packages/fenics was installed https://fenicsproject.org/download/archive/
 # Use --system-site-packages in venv
 fenics-dijitso~=2019.0
 fenics-ffc~=2019.0
 fenics-fiat~=2019.0
-fenics-ufl-legacy~=2022.0
\ No newline at end of file
+fenics-ufl-legacy~=2022.0
diff --git a/volume-coupled-diffusion/solver-fenics/volume-coupled-diffusion.py b/volume-coupled-diffusion/solver-fenics/volume-coupled-diffusion.py
index 034ebec2e..91b4f6a9a 100644
--- a/volume-coupled-diffusion/solver-fenics/volume-coupled-diffusion.py
+++ b/volume-coupled-diffusion/solver-fenics/volume-coupled-diffusion.py
@@ -1,7 +1,6 @@
 from fenics import Function, FunctionSpace, Expression, Constant, DirichletBC, TrialFunction, TestFunction, File, \
     solve, lhs, rhs, dx, UnitSquareMesh, SubDomain, inner, grad, MeshFunction, MPI, interpolate
 from fenicsprecice import Adapter
-import numpy as np
 import argparse
 
 
diff --git a/volume-coupled-flow/source-nutils/source.py b/volume-coupled-flow/source-nutils/source.py
index 3683a049e..2cdbcfa2e 100644
--- a/volume-coupled-flow/source-nutils/source.py
+++ b/volume-coupled-flow/source-nutils/source.py
@@ -1,11 +1,9 @@
 #! /usr/bin/env python3
 
 
-from nutils import function, mesh, cli, solver, export
-import treelog as log
+from nutils import function, mesh, cli
 import numpy as np
 import precice
-from mpi4py import MPI
 
 
 def main():
diff --git a/water-hammer/solver-fluid1d-nutils/Fluid1D.py b/water-hammer/solver-fluid1d-nutils/Fluid1D.py
index 608c8a119..0ce0471dc 100644
--- a/water-hammer/solver-fluid1d-nutils/Fluid1D.py
+++ b/water-hammer/solver-fluid1d-nutils/Fluid1D.py
@@ -1,5 +1,4 @@
 import numpy as np
-import matplotlib.pyplot as plt
 import treelog
 from nutils import mesh, function, solver, cli
 import precice

From 487c3b01f04db7a387814daf76b22bf4a607ef7a Mon Sep 17 00:00:00 2001
From: Floze <88098863+floze-the-genius@users.noreply.github.com>
Date: Thu, 13 Aug 2026 21:34:53 +0400
Subject: [PATCH 2/2] docs: add changelog entry for PR 896

---
 changelog-entries/896.md | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 changelog-entries/896.md

diff --git a/changelog-entries/896.md b/changelog-entries/896.md
new file mode 100644
index 000000000..8a0904264
--- /dev/null
+++ b/changelog-entries/896.md
@@ -0,0 +1 @@
+- Removed unused Python imports and direct dependencies from tutorial participants. [#896](https://github.com/precice/tutorials/pull/896)