Error in pytwin example when auto upgrade of pyfluent/pyfluent-visualization dependencies version

[chrpetre]

🔍 Before submitting the issue

• I have searched among the existing issues
• I am using a Python virtual environment

🐞 Description of the bug

Dependabot has tried to upgrade pyfluent version (0.30.5 to 0.33.0), used in one of the pytwin example (pytwin/examples/02-tbrom_examples/00-TBROM_images.py at main · ansys/pytwin and 3D field ROM example for images generation — PyTwin), leading to some execution error as reported here (https://github.com/ansys/pytwin/actions/runs/15982439677/job/45079718242)

When trying to upgrade pyfluent-visualization to the latest version as well (ansys/pytwin@5718bb7), it leads to an other error as reported here https://github.com/ansys/pytwin/actions/runs/15995247758/job/45117119307?pr=313

📝 Steps to reproduce

Create a virtual environment as described below
Run the pytwin example located here https://github.com/ansys/pytwin/blob/main/examples/02-tbrom_examples/00-TBROM_images.py

💻 Which operating system are you using?

Windows

📀 Which ANSYS version are you using?

Ansys Fluent 2022R2 is used on the doc creation runner, but same issue has been experienced with newer versions as well

🐍 Which Python version are you using?

3.13

📦 Installed packages

accessible-pygments==0.0.5
aiohappyeyeballs==2.6.1
aiohttp==3.11.18
aiosignal==1.3.2
alabaster==1.0.0
annotated-types==0.7.0
ansys-api-edb==1.0.10
ansys-api-fluent==0.3.35
ansys-api-mapdl==0.5.2
ansys-api-platform-instancemanagement==1.1.3
ansys-api-tools-filetransfer==0.1.1
ansys-dpf-core==0.13.8
-e git+https://github.com/ansys/pytwin@296c30a0bf536b6e2715abb413027a20d84600a7#egg=ansys_dpf_server_2024_1_pre0&subdirectory=ansys_dpf_server_win_v2024.1.pre0
ansys-edb-core==0.1.9
ansys-fluent-core==0.33.0
ansys-fluent-visualization==0.20.0
ansys-mapdl-core==0.70.2
ansys-mapdl-reader==0.55.1
ansys-math-core==0.2.0
ansys-platform-instancemanagement==1.1.2
ansys-pythonnet==3.1.0rc6
ansys-sphinx-theme==1.5.2
ansys-tools-filetransfer==0.1.1
ansys-tools-path==0.7.1
ansys-tools-visualization-interface==0.9.1
ansys-units==0.6.0
anyio==4.9.0
appdirs==1.4.4
asttokens==3.0.0
attrs==25.3.0
babel==2.17.0
beautifulsoup4==4.13.4
bleach==6.2.0
build==1.2.2.post1
CacheControl==0.14.3
certifi==2025.4.26
cffi==1.17.1
charset-normalizer==3.4.1
cleo==2.1.0
click==8.1.8
clr_loader==0.2.7.post0
colorama==0.4.6
comm==0.2.2
contourpy==1.3.2
crashtest==0.4.1
cycler==0.12.1
debugpy==1.8.14
decorator==5.2.1
defusedxml==0.7.1
Deprecated==1.2.18
distlib==0.3.9
docker==7.1.0
docutils==0.21.2
dulwich==0.22.8
executing==2.2.0
fastjsonschema==2.21.1
filelock==3.18.0
findpython==0.6.3
fonttools==4.57.0
fpdf2==2.8.3
frozenlist==1.6.0
geomdl==5.3.1
googleapis-common-protos==1.70.0
grpcio==1.70.0
grpcio-health-checking==1.62.3
grpcio-status==1.62.3
h11==0.16.0
httpcore==1.0.9
httpx==0.28.1
idna==3.10
imageio==2.37.0
imagesize==1.4.1
importlib_metadata==8.7.0
installer==0.7.0
ipykernel==6.29.5
ipython==9.2.0
ipython_pygments_lexers==1.1.1
ipywidgets==8.1.6
jaraco.classes==3.4.0
jaraco.context==6.0.1
jaraco.functools==4.2.1
jedi==0.19.2
Jinja2==3.1.6
joblib==1.4.2
jsonschema==4.23.0
jsonschema-specifications==2025.4.1
jupyter-sphinx==0.5.3
jupyter_client==8.6.3
jupyter_core==5.7.2
jupyterlab_pygments==0.3.0
jupyterlab_widgets==3.0.14
keyring==25.6.0
kiwisolver==1.4.8
MarkupSafe==3.0.2
matplotlib==3.10.3
matplotlib-inline==0.1.7
mistune==3.1.3
more-itertools==10.7.0
msgpack==1.1.0
multidict==6.4.3
nbclient==0.10.2
nbconvert==7.16.6
nbformat==5.10.4
nest-asyncio==1.6.0
nltk==3.9.1
numpy==2.2.6
numpydoc==1.9.0
packaging==25.0
pandas==2.2.3
pandocfilters==1.5.1
parso==0.8.4
pbs-installer==2025.6.30
pdf2image==1.17.0
pillow==11.2.1
pkginfo==1.12.1.2
platformdirs==4.3.7
plumbum==1.9.0
poetry==2.1.3
poetry-core==2.1.3
pooch==1.8.2
prompt_toolkit==3.0.51
propcache==0.3.1
protobuf==4.25.7
psutil==7.0.0
pure_eval==0.2.3
pyaedt==0.17.4
pyansys-tools-report==0.8.2
pyansys-tools-versioning==0.6.0
pycparser==2.22
pydantic==2.10.6
pydantic_core==2.27.2
pydata-sphinx-theme==0.16.1
pyedb==0.43.0
Pygments==2.19.1
pyiges==0.3.1
pyparsing==3.2.3
pyproject_hooks==1.2.0
PySide6==6.8.3
PySide6_Addons==6.8.3
PySide6_Essentials==6.8.3
python-dateutil==2.9.0.post0
-e git+https://github.com/ansys/pytwin@296c30a0bf536b6e2715abb413027a20d84600a7#egg=pytwin
pytz==2025.2
pyvista==0.45.2
pyvistaqt==0.11.2
pywin32==310
pywin32-ctypes==0.2.3
PyYAML==6.0.2
pyzmq==26.4.0
QtPy==2.4.3
RapidFuzz==3.13.0
referencing==0.36.2
regex==2024.11.6
requests==2.32.3
requests-toolbelt==1.0.0
roman-numerals-py==3.1.0
rpds-py==0.24.0
rpyc==6.0.2
rtree==1.4.0
scikit-rf==1.6.2
scipy==1.15.2
scooby==0.10.1
setuptools==80.0.0
shapely==2.1.0
shellingham==1.5.4
shiboken6==6.8.3
six==1.17.0
sniffio==1.3.1
snowballstemmer==2.2.0
soupsieve==2.7
Sphinx==8.2.3
sphinx-autodoc-typehints==3.2.0
sphinx-copybutton==0.5.2
sphinx-gallery==0.19.0
sphinx-notfound-page==1.1.0
sphinxcontrib-applehelp==2.0.0
sphinxcontrib-devhelp==2.0.0
sphinxcontrib-htmlhelp==2.1.0
sphinxcontrib-jsmath==1.0.1
sphinxcontrib-qthelp==2.0.0
sphinxcontrib-serializinghtml==2.0.0
sphinxemoji==0.3.1
stack-data==0.6.3
tabulate==0.9.0
tinycss2==1.4.0
toml==0.10.2
tomli_w==1.2.0
tomlkit==0.13.3
tornado==6.5.1
tqdm==4.67.1
traitlets==5.14.3
trame==3.9.0
trame-client==3.8.2
trame-common==0.2.0
trame-server==3.4.0
trame-vtk==2.8.15
trame-vuetify==3.0.1
trove-classifiers==2025.5.9.12
typing_extensions==4.13.2
tzdata==2025.2
urllib3==2.4.0
virtualenv==20.31.2
vtk==9.4.2
wcwidth==0.2.13
webencodings==0.5.1
websockets==15.0.1
widgetsnbextension==4.0.14
wrapt==1.17.2
wslink==2.3.3
yarl==1.20.0
zipp==3.21.0
zstandard==0.23.0

[chrpetre]

@seanpearsonuk fyi

[chrpetre]

hello @prmukherj , is there any update on this issue ? thanks

[prmukherj]

@chrpetre, Will be resolved in the next release. It'll be done by this week only. Thank you so much for your patience. Actually it took some time to update the dependencies, as the Fluent image had been updated.

[prmukherj]

Hi @chrpetre,
This should be resolved if you use v0.21.0

Please re-open if issue persist.
Thank you.

[chrpetre]

hi @prmukherj , I have tried 0.21.0 but unfortunately the same problem persists, see here https://github.com/ansys/pytwin/actions/runs/16672840526/job/47192900725?pr=323

I am reopening the issue accordingly, can you please take a look from your end ? thanks

[chrpetre]

@prmukherj I don't seem to have permissions to reopen it, so can you please do it from your end ? thanks

[prmukherj]

@chrpetre, actually this was the bug reported that I should have been fixed now:

This was there in your error transcript. However, now it seems to be different. Could you please paste then entire error traceback?Thank you

[prmukherj]

@chrpetre, I can reproduce it as well. Will look into it.

[chrpetre]

@prmukherj here is the traceback (https://github.com/ansys/pytwin/actions/runs/16672840526/job/47192900725?pr=323) when trying to run the example (https://twin.docs.pyansys.com/version/stable/examples/02-tbrom_examples/01-TBROM_dataTransfer_pyMAPDL.html#sphx-glr-examples-02-tbrom-examples-01-tbrom-datatransfer-pymapdl-py) as part of our doc build action :

Traceback

  File "C:\Users\ansys\Documents\actions-runner\_work\pytwin\pytwin\.venv\Lib\site-packages\sphinx_gallery\gen_gallery.py", line 1558, in summarize_failing_examples
    raise ExtensionError(fail_message)
sphinx.errors.ExtensionError: Here is a summary of the problems encountered when running the examples:

Unexpected failing examples (1):

    ..\..\examples\02-tbrom_examples\00-TBROM_images.py failed leaving traceback:

    Traceback (most recent call last):
      File "C:\Users\ansys\Documents\actions-runner\_work\pytwin\pytwin\examples\02-tbrom_examples\00-TBROM_images.py", line 187, in <module>
        temperature_contour.display()
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
      File "C:\Users\ansys\Documents\actions-runner\_work\pytwin\pytwin\.venv\Lib\site-packages\ansys\fluent\interface\post_objects\meta.py", line 132, in _execute
        return method(_self.obj, *args, **kwargs)
      File "C:\Users\ansys\Documents\actions-runner\_work\pytwin\pytwin\.venv\Lib\site-packages\ansys\fluent\visualization\graphics\graphics_objects.py", line 211, in display
        graphics_windows_manager.plot(
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
            self, window_id=window_id, overlay=overlay, fetch_data=True
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        )
        ^
      File "C:\Users\ansys\Documents\actions-runner\_work\pytwin\pytwin\.venv\Lib\site-packages\ansys\fluent\visualization\graphics\graphics_windows_manager.py", line 953, in plot
        self._plot_notebook(graphics_object, window_id, fetch_data, overlay)
        ~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
      File "C:\Users\ansys\Documents\actions-runner\_work\pytwin\pytwin\.venv\Lib\site-packages\ansys\fluent\visualization\graphics\graphics_windows_manager.py", line 999, in _plot_notebook
        window.plot()
        ~~~~~~~~~~~^^
      File "C:\Users\ansys\Documents\actions-runner\_work\pytwin\pytwin\.venv\Lib\site-packages\ansys\fluent\visualization\graphics\graphics_windows_manager.py", line 215, in plot
        self.fetch()
        ~~~~~~~~~~^^
      File "C:\Users\ansys\Documents\actions-runner\_work\pytwin\pytwin\.venv\Lib\site-packages\ansys\fluent\visualization\graphics\graphics_windows_manager.py", line 149, in fetch
        self._fetch_data(obj, FieldDataType(obj.__class__.__name__))
        ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
      File "C:\Users\ansys\Documents\actions-runner\_work\pytwin\pytwin\.venv\Lib\site-packages\ansys\fluent\visualization\graphics\graphics_windows_manager.py", line 221, in _fetch_data
        self._data[data_type] = FieldDataExtractor(obj).fetch_data()
                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
      File "C:\Users\ansys\Documents\actions-runner\_work\pytwin\pytwin\.venv\Lib\site-packages\ansys\fluent\visualization\post_data_extractor.py", line 80, in fetch_data
        return self._fetch_contour_data(self._post_object, *args, **kwargs)
               ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
      File "C:\Users\ansys\Documents\actions-runner\_work\pytwin\pytwin\.venv\Lib\site-packages\ansys\fluent\visualization\post_data_extractor.py", line 167, in _fetch_contour_data
        raise ServerDataRequestError() from e
    ansys.fluent.visualization.post_data_extractor.ServerDataRequestError: Error while requesting data from server.

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