Error Reading RST file

[agrishin]

Before submitting the issue

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

Description of the bug

Costas Vogiatzis @ Honeywell receives the following error when attempting to read an rst file:
Attempting to use the standalone DPF I get the error below. It seems that it’s looking for files that were not part of the DPF distribution:

Traceback (most recent call last):
File "C:\Users\e092220.venv\3.9.6\pyansys-latest\lib\site-packages\ansys\dpf\core\server_types.py", line 896, in init
data_processing_core_load_api(path, "common")
File "C:\Users\e092220.venv\3.9.6\pyansys-latest\lib\site-packages\ansys\dpf\gate\utils.py", line 13, in data_processing_core_load_api
raise Exception(errorMsg.value)
Exception: Unable to load C:\Users\e092220\Documents\TEMP\ansys_dpf_server_win_v2024.1.pre0\ansys\aisol\bin\winx64\DataProcessingCore.dll. Error code is 126: Module could not be found.
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Users\e092220.venv\3.9.6\pyansys-latest\lib\site-packages\IPython\core\interactiveshell.py", line 3460, in run_code
exec(code_obj, self.user_global_ns, self.user_ns)
File "", line 1, in
model = dpf.Model(rstfile)
File "C:\Users\e092220.venv\3.9.6\pyansys-latest\lib\site-packages\ansys\dpf\core\model.py", line 49, in init
server = dpf.core._global_server()
File "C:\Users\e092220.venv\3.9.6\pyansys-latest\lib\site-packages\ansys\dpf\core\server.py", line 73, in _global_server
start_local_server(as_global=True)

Steps To Reproduce

ANSYS_DPF_PATH= C:\Users\e092220\Documents\TEMP\ansys_dpf_server_win_v2024.1.pre0\ansys

from ansys.dpf import core as dpf
rstfile=r'D:\Documents\Software\FCDSLib-Data-US-Only\MechLib\prestress.rst'
model = dpf.Model(rstfile)

Which Operating System are you using?

Windows

Which DPF/Ansys version are you using?

Ansys 2024 R1

Which Python version are you using?

3.7

Installed packages

aiofiles==22.1.0
aiohttp==3.8.4
aiosignal==1.3.1
aiosqlite==0.18.0
ansys-api-mapdl==0.5.1
ansys-api-platform-instancemanagement==1.0.0b3
ansys-dpf-core==0.8.1
ansys-dpf-gate==0.3.1
ansys-dpf-gatebin==0.3.1
ansys-dpf-post==0.3.0
ansys-grpc-dpf==0.7.1
ansys-mapdl-core==0.64.0
ansys-mapdl-reader==0.52.11
ansys-platform-instancemanagement==1.0.3
anyio==3.6.2
appdirs==1.4.4
argon2-cffi==21.3.0
argon2-cffi-bindings==21.2.0
arrow==1.2.3
asttokens==2.2.1
async-timeout==4.0.2
attrs==22.2.0
Babel==2.12.1
backcall==0.2.0
beautifulsoup4==4.11.2
bleach==6.0.0
cachetools==5.3.0
certifi==2022.12.7
cffi==1.15.1
charset-normalizer==3.1.0
click==8.1.3
colorama==0.4.6
comm==0.1.2
contourpy==1.0.7
cycler==0.11.0
debugpy==1.6.6
decorator==5.1.1
defusedxml==0.7.1
et-xmlfile==1.1.0
executing==1.2.0
fastjsonschema==2.16.3
fonttools==4.39.0
fqdn==1.5.1
frozenlist==1.3.3
geomdl==5.3.1
google-api-core==2.11.0
google-api-python-client==2.81.0
google-auth==2.16.2
google-auth-httplib2==0.1.0
googleapis-common-protos==1.58.0
grpcio==1.51.3
httplib2==0.21.0
idna==3.4
imageio==2.26.0
importlib-metadata==6.0.0
importlib-resources==5.12.0
ipydatawidgets==4.3.3
ipykernel==6.21.3
ipython==8.11.0
ipython-genutils==0.2.0
ipywidgets==8.0.4
isoduration==20.11.0
jedi==0.18.2
Jinja2==3.1.2
json5==0.9.11
jsonpointer==2.3
jsonschema==4.17.3
jupyter-client==8.0.3
jupyter-core==5.2.0
jupyter-events==0.6.3
jupyter-server==2.4.0
jupyter-server-fileid==0.8.0
jupyter-server-terminals==0.4.4
jupyter-server-ydoc==0.6.1
jupyter-ydoc==0.2.3
jupyterlab==3.6.1
jupyterlab-pygments==0.2.2
jupyterlab-server==2.20.0
jupyterlab-widgets==3.0.5
kiwisolver==1.4.4
MarkupSafe==2.1.2
matplotlib==3.7.1
matplotlib-inline==0.1.6
mistune==2.0.5
multidict==6.0.4
nbclassic==0.5.3
nbclient==0.7.2
nbconvert==7.2.10
nbformat==5.7.3
nest-asyncio==1.5.6
notebook==6.5.3
notebook-shim==0.2.2
numpy==1.24.2
openpyxl==3.1.2
packaging==23.0
pandas==2.0.0
pandocfilters==1.5.0
parso==0.8.3
pickleshare==0.7.5
Pillow==9.4.0
Pint==0.23
platformdirs==3.1.1
pooch==1.7.0
prometheus-client==0.16.0
prompt-toolkit==3.0.38
protobuf==3.20.3
protoc-gen-swagger==0.1.0
psutil==5.9.4
pure-eval==0.2.2
pyansys-tools-versioning==0.3.3
pyasn1==0.4.8
pyasn1-modules==0.2.8
pycparser==2.21
Pygments==2.14.0
pyiges==0.2.1
pyparsing==3.0.9
pyrsistent==0.19.3
python-dateutil==2.8.2
python-json-logger==2.0.7
pythreejs==2.4.2
pytz==2023.3
pyvista==0.38.4
pyvistaqt==0.11.0
pywin32==305
pywinpty==2.0.10
PyYAML==6.0
pyzmq==25.0.1
QtPy==2.4.1
requests==2.28.2
rfc3339-validator==0.1.4
rfc3986-validator==0.1.1
rsa==4.9
scipy==1.10.1
scooby==0.7.1
Send2Trash==1.8.0
six==1.16.0
sniffio==1.3.0
soupsieve==2.4
stack-data==0.6.2
terminado==0.17.1
tinycss2==1.2.1
tomli==2.0.1
tornado==6.2
tqdm==4.65.0
traitlets==5.9.0
traittypes==0.2.1
trame==2.3.2
trame-client==2.7.4
trame-components==2.1.0
trame-deckgl==2.0.1
trame-markdown==2.0.2
trame-matplotlib==2.0.1
trame-plotly==2.1.0
trame-rca==0.3.0
trame-router==2.0.1
trame-server==2.9.1
trame-simput==2.3.1
trame-vega==2.0.2
trame-vtk==2.3.4
trame-vuetify==2.2.4
typing-extensions==4.10.0
tzdata==2023.3
uri-template==1.2.0
uritemplate==4.1.1
urllib3==1.26.15
vtk==9.2.6
wcwidth==0.2.6
webcolors==1.12
webencodings==0.5.1
websocket-client==1.5.1
widgetsnbextension==4.0.5
wslink==1.10.1
y-py==0.5.9
yarl==1.8.2
ypy-websocket==0.8.2
zipp==3.15.0

[PProfizi]

Hello @agrishin,

For Ansys 2024 R1, you need at least ansys-dpf-post==0.6.0 (with ansys-dpf-core==0.10.1), which is only available for Python 3.9 and above.

[agrishin]

The customer's response:

Perhaps not surprisingly the dpf version is not the problem. I have updated to the latest modules and switched to python 3.11 but the problem persists.

In [5]: from ansys.dpf import core as dpf
   ...: rstfile=r'D:\Documents\Software\FCDSLib-Data-US-Only\MechLib\prestress.rst'
   ...: model = dpf.Model(rstfile)
   ...:
---------------------------------------------------------------------------
Exception                                 Traceback (most recent call last)
File ~\.venv\3.11\pyansys-24r1\Lib\site-packages\ansys\dpf\core\server_types.py:912, in InProcessServer.__init__(self, ansys_path, as_global, load_operators, timeout, context)
    911 try:
--> 912     data_processing_core_load_api(path, "common")
    913 except Exception as e:

File ~\.venv\3.11\pyansys-24r1\Lib\site-packages\ansys\dpf\gate\utils.py:13, in data_processing_core_load_api(path, api_name)
     12 if errorSize.value != 0:
---> 13     raise Exception(errorMsg.value)

Exception: Unable to load C:\Users\e092220\Documents\TEMP\ansys_dpf_server_win_v2024.1.pre0\ansys\aisol\bin\winx64\DataProcessingCore.dll. Error code is 126: Module could not be found.

During handling of the above exception, another exception occurred:

NotADirectoryError                        Traceback (most recent call last)
Cell In[5], line 3
      1 from ansys.dpf import core as dpf
      2 rstfile=r'D:\Documents\Software\FCDSLib-Data-US-Only\MechLib\prestress.rst'
----> 3 model = dpf.Model(rstfile)

File ~\.venv\3.11\pyansys-24r1\Lib\site-packages\ansys\dpf\core\model.py:49, in Model.__init__(self, data_sources, server)
     46 """Initialize connection with DPF server."""
     48 if server is None:
---> 49     server = dpf.core._global_server()
     51 self._data_sources = data_sources
     52 self._server = server

File ~\.venv\3.11\pyansys-24r1\Lib\site-packages\ansys\dpf\core\server.py:75, in _global_server()
     72             connect_to_server(ip, port)
     73         # if true, start a server
     74         else:
---> 75             start_local_server(as_global=True)
     76     return dpf.core.SERVER
     77 return None

File ~\.venv\3.11\pyansys-24r1\Lib\site-packages\ansys\dpf\core\server.py:245, in start_local_server(ip, port, ansys_path, as_global, load_operators, use_docker_by_default, docker_config, timeout, config, use_pypim_by_default, context)
    232         server = server_type(
    233             ansys_path,
    234             ip,
   (...)
    242             context=context,
    243         )
    244     else:
--> 245         server = server_type(
    246             ansys_path,
    247             as_global=as_global,
    248             load_operators=load_operators,
    249             timeout=timeout,
    250             context=context,
    251         )
    252     break
    253 except errors.InvalidPortError:  # allow socket in use errors

File ~\.venv\3.11\pyansys-24r1\Lib\site-packages\ansys\dpf\core\server_types.py:915, in InProcessServer.__init__(self, ansys_path, as_global, load_operators, timeout, context)
    913 except Exception as e:
    914     if not os.path.isdir(os.path.dirname(path)):
--> 915         raise NotADirectoryError(
    916             f"DPF directory not found at {os.path.dirname(path)}"
    917             f"Unable to locate the following file: {path}"
    918         )
    919     raise e
    920 try:

NotADirectoryError: DPF directory not found at C:\Users\e092220\Documents\TEMP\ansys_dpf_server_win_v2024.1.pre0\ansys\aisol\bin\winx64Unable to locate the following file: C:\Users\e092220\Documents\TEMP\ansys_dpf_server_win_v2024.1.pre0\ansys\aisol\bin\winx64\DataProcessingCore

[PProfizi]

Hi @agrishin,

the last error states:
NotADirectoryError: DPF directory not found at C:\Users\e092220\Documents\TEMP\ansys_dpf_server_win_v2024.1.pre0\ansys\aisol\bin\winx64

which makes it impossible to start a DPF server.

Can the customer verify that the folder does indeed not exist?