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Python tutorials: Allow skipping venv setup #680

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b62ec54
Python tutorials: Allow skipping venv setup
MakisH Nov 12, 2025
116bb9a
Add changelog entry
MakisH Nov 12, 2025
803bd08
Replace option with environment variable
MakisH Nov 17, 2025
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1 change: 1 addition & 0 deletions changelog-entries/680.md
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- Added an option to skip the setup of a Python venv in the run.sh scripts of Python-related tutorials [#680](https://github.com/precice/tutorials/pull/680)
9 changes: 6 additions & 3 deletions channel-transport-reaction/chemical-fenics/run.sh
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Expand Up @@ -4,9 +4,12 @@ set -e -u
. ../../tools/log.sh
exec > >(tee --append "$LOGFILE") 2>&1

python3 -m venv --system-site-package .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
if [ "${PRECICE_TUTORIALS_VENV:-true}" = true ]
then
python3 -m venv --system-site-package .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
fi

python3 chemical-reaction-advection-diffusion.py

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10 changes: 6 additions & 4 deletions channel-transport-reaction/fluid-fenics/run.sh
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Expand Up @@ -4,10 +4,12 @@ set -e -u
. ../../tools/log.sh
exec > >(tee --append "$LOGFILE") 2>&1

python3 -m venv --system-site-package .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log

if [ "${PRECICE_TUTORIALS_VENV:-true}" = true ]
then
python3 -m venv --system-site-package .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
fi

python3 fluid.py

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10 changes: 7 additions & 3 deletions channel-transport/fluid-nutils/run.sh
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Expand Up @@ -4,9 +4,13 @@ set -e -u
. ../../tools/log.sh
exec > >(tee --append "$LOGFILE") 2>&1

python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
if [ "${PRECICE_TUTORIALS_VENV:-true}" = true ]
then
python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
fi

python3 fluid.py

close_log
10 changes: 7 additions & 3 deletions channel-transport/transport-nutils/run.sh
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Expand Up @@ -4,9 +4,13 @@ set -e -u
. ../../tools/log.sh
exec > >(tee --append "$LOGFILE") 2>&1

python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
if [ "${PRECICE_TUTORIALS_VENV:-true}" = true ]
then
python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
fi

python3 transport.py "$@"

close_log
9 changes: 6 additions & 3 deletions elastic-tube-1d/fluid-python/run.sh
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Expand Up @@ -4,9 +4,12 @@ set -e -u
. ../../tools/log.sh
exec > >(tee --append "$LOGFILE") 2>&1

python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
if [ "${PRECICE_TUTORIALS_VENV:-true}" = true ]
then
python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
fi

python3 ./FluidSolver.py ../precice-config.xml

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9 changes: 6 additions & 3 deletions elastic-tube-1d/solid-python/run.sh
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Expand Up @@ -4,9 +4,12 @@ set -e -u
. ../../tools/log.sh
exec > >(tee --append "$LOGFILE") 2>&1

python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
if [ "${PRECICE_TUTORIALS_VENV:-true}" = true ]
then
python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
fi

python3 ./SolidSolver.py ../precice-config.xml

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9 changes: 6 additions & 3 deletions elastic-tube-3d/solid-fenics/run.sh
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Expand Up @@ -4,8 +4,11 @@ set -e -u
. ../../tools/log.sh
exec > >(tee --append "$LOGFILE") 2>&1

python3 -m venv --system-site-package .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
if [ "${PRECICE_TUTORIALS_VENV:-true}" = true ]
then
python3 -m venv --system-site-package .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
fi

python3 solid.py
9 changes: 6 additions & 3 deletions flow-around-controlled-moving-cylinder/controller-fmi/run.sh
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Expand Up @@ -15,9 +15,12 @@ if [ ! -f PIDcontroller.fmu ]; then
cd ../../
fi

python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
if [ "${PRECICE_TUTORIALS_VENV:-true}" = true ]
then
python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
fi

fmiprecice ./fmi-settings.json ./precice-settings.json

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9 changes: 6 additions & 3 deletions flow-around-controlled-moving-cylinder/solid-python/run.sh
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Expand Up @@ -4,9 +4,12 @@ set -e -u
. ../../tools/log.sh
exec > >(tee --append "$LOGFILE") 2>&1

python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
if [ "${PRECICE_TUTORIALS_VENV:-true}" = true ]
then
python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
fi

python3 solid.py ../precice-config.xml

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9 changes: 6 additions & 3 deletions flow-over-heated-plate/fluid-su2/run.sh
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Expand Up @@ -4,9 +4,12 @@ set -e -u
. ../../tools/log.sh
exec > >(tee --append "$LOGFILE") 2>&1

python3 -m venv --system-site-packages .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
if [ "${PRECICE_TUTORIALS_VENV:-true}" = true ]
then
python3 -m venv --system-site-package .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
fi

SU2_preCICE_CHT.py -f laminar_config_unsteady.cfg -r --parallel

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9 changes: 6 additions & 3 deletions flow-over-heated-plate/solid-dunefem/run.sh
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Expand Up @@ -4,9 +4,12 @@ set -e -u
. ../../tools/log.sh
exec > >(tee --append "$LOGFILE") 2>&1

python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
if [ "${PRECICE_TUTORIALS_VENV:-true}" = true ]
then
python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
fi
python3 solid.py

close_log
9 changes: 6 additions & 3 deletions flow-over-heated-plate/solid-fenics/run.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -4,9 +4,12 @@ set -e -u
. ../../tools/log.sh
exec > >(tee --append "$LOGFILE") 2>&1

python3 -m venv --system-site-packages .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
if [ "${PRECICE_TUTORIALS_VENV:-true}" = true ]
then
python3 -m venv --system-site-package .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
fi

python3 solid.py

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9 changes: 6 additions & 3 deletions flow-over-heated-plate/solid-nutils/run.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -4,9 +4,12 @@ set -e -u
. ../../tools/log.sh
exec > >(tee --append "$LOGFILE") 2>&1

python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
if [ "${PRECICE_TUTORIALS_VENV:-true}" = true ]
then
python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
fi
python3 solid.py

close_log
9 changes: 6 additions & 3 deletions oscillator/mass-left-fmi/run.sh
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Expand Up @@ -16,9 +16,12 @@ if [ ! -f ../solver-fmi/Oscillator.fmu ]; then
cd ../../../mass-left-fmi
fi

python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
if [ "${PRECICE_TUTORIALS_VENV:-true}" = true ]
then
python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
fi

fmiprecice fmi-settings.json precice-settings.json
python3 ../solver-fmi/calculate-error.py ../mass-left-fmi/fmi-settings.json ../mass-left-fmi/precice-settings.json ../mass-right-fmi/fmi-settings.json ../mass-right-fmi/precice-settings.json Mass-Left
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9 changes: 6 additions & 3 deletions oscillator/mass-right-fmi/run.sh
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Expand Up @@ -16,9 +16,12 @@ if [ ! -f ../solver-fmi/Oscillator.fmu ]; then
cd ../../../mass-right-fmi
fi

python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
if [ "${PRECICE_TUTORIALS_VENV:-true}" = true ]
then
python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
fi

fmiprecice fmi-settings.json precice-settings.json
python3 ../solver-fmi/calculate-error.py ../mass-left-fmi/fmi-settings.json ../mass-left-fmi/precice-settings.json ../mass-right-fmi/fmi-settings.json ../mass-right-fmi/precice-settings.json Mass-Right
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10 changes: 7 additions & 3 deletions partitioned-heat-conduction-complex/dirichlet-fenics/run.sh
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Expand Up @@ -4,9 +4,13 @@ set -e -u
. ../../tools/log.sh
exec > >(tee --append "$LOGFILE") 2>&1

python3 -m venv --system-site-packages .venv
. .venv/bin/activate
pip install -r ../solver-fenics/requirements.txt
if [ $# -eq 0 ]
then
echo "Installing dependencies in a Python virtual environment"
python3 -m venv --system-site-packages .venv
. .venv/bin/activate
pip install -r ../solver-fenics/requirements.txt
fi

python3 ../solver-fenics/heat.py -d -i complex

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10 changes: 7 additions & 3 deletions partitioned-heat-conduction-complex/neumann-fenics/run.sh
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Expand Up @@ -4,9 +4,13 @@ set -e -u
. ../../tools/log.sh
exec > >(tee --append "$LOGFILE") 2>&1

python3 -m venv --system-site-packages .venv
. .venv/bin/activate
pip install -r ../solver-fenics/requirements.txt
if [ $# -eq 0 ]
then
echo "Installing dependencies in a Python virtual environment"
python3 -m venv --system-site-packages .venv
. .venv/bin/activate
pip install -r ../solver-fenics/requirements.txt
fi

python3 ../solver-fenics/heat.py -n -i complex

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9 changes: 6 additions & 3 deletions partitioned-heat-conduction-direct/dirichlet-nutils/run.sh
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Expand Up @@ -4,9 +4,12 @@ set -e -u
. ../../tools/log.sh
exec > >(tee --append "$LOGFILE") 2>&1

python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
if [ "${PRECICE_TUTORIALS_VENV:-true}" = true ]
then
python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
fi

rm -rf Dirichlet-*.vtk
NUTILS_RICHOUTPUT=no python3 heat.py
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9 changes: 6 additions & 3 deletions partitioned-heat-conduction-direct/neumann-nutils/run.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -4,9 +4,12 @@ set -e -u
. ../../tools/log.sh
exec > >(tee --append "$LOGFILE") 2>&1

python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
if [ "${PRECICE_TUTORIALS_VENV:-true}" = true ]
then
python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
fi

rm -rf Neumann-*.vtk
NUTILS_RICHOUTPUT=no python3 heat.py
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10 changes: 7 additions & 3 deletions partitioned-heat-conduction-overlap/left-fenics/run.sh
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Expand Up @@ -4,9 +4,13 @@ set -e -u
. ../../tools/log.sh
exec > >(tee --append "$LOGFILE") 2>&1

python3 -m venv --system-site-packages .venv
. .venv/bin/activate
pip install -r ../solver-fenics/requirements.txt
if [ $# -eq 0 ]
then
echo "Installing dependencies in a Python virtual environment"
python3 -m venv --system-site-packages .venv
. .venv/bin/activate
pip install -r ../solver-fenics/requirements.txt
fi

python3 ../solver-fenics/heat.py Left

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10 changes: 7 additions & 3 deletions partitioned-heat-conduction-overlap/right-fenics/run.sh
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Expand Up @@ -4,9 +4,13 @@ set -e -u
. ../../tools/log.sh
exec > >(tee --append "$LOGFILE") 2>&1

python3 -m venv --system-site-packages .venv
. .venv/bin/activate
pip install -r ../solver-fenics/requirements.txt
if [ $# -eq 0 ]
then
echo "Installing dependencies in a Python virtual environment"
python3 -m venv --system-site-packages .venv
. .venv/bin/activate
pip install -r ../solver-fenics/requirements.txt
fi

python3 ../solver-fenics/heat.py Right

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9 changes: 6 additions & 3 deletions partitioned-heat-conduction/dirichlet-fenics/run.sh
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@@ -1,9 +1,12 @@
#!/usr/bin/env bash
set -e -u

python3 -m venv --system-site-packages .venv
. .venv/bin/activate
pip install -r ../solver-fenics/requirements.txt
if [ "${PRECICE_TUTORIALS_VENV:-true}" = true ]
then
python3 -m venv --system-site-packages .venv
. .venv/bin/activate
pip install -r ../solver-fenics/requirements.txt
fi

. ../../tools/log.sh
exec > >(tee --append "$LOGFILE") 2>&1
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9 changes: 6 additions & 3 deletions partitioned-heat-conduction/dirichlet-nutils/run.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -4,9 +4,12 @@ set -e -u
. ../../tools/log.sh
exec > >(tee --append "$LOGFILE") 2>&1

python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
if [ "${PRECICE_TUTORIALS_VENV:-true}" = true ]
then
python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt && pip freeze > pip-installed-packages.log
fi

rm -rf Dirichlet-*.vtk
NUTILS_RICHOUTPUT=no python3 heat.py
Expand Down
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