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[PyFoam] Installation on a VM

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Old   June 10, 2022, 04:18
Default Installation on a VM
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I recently installed a VM (via Hyper-V) on my Windows 10. I chose Ubuntu 22.04 LTS and installed OpenFoam-dev.

So far everything worked fine (OF runs fine and everything). Now I want to watch residuals, etc. with PyFoam. Therefore I installed the newest python 3.10 and then followed the guide ( to install PyFoam with pip. Worked perferctly. Checked the installation with
import PyFoam
import PyFoam.FoamInformation
print PyFoam.FoamInformation.foamTutorials()
and got the right results as expected.

Now comes the trouble. I tried some differnt versions with the cavity tutorial:
- When I want to watch my residuals with the I only got a new folder "log.analyzed"but it's completly empty. And also no plots at all.
- With " icoFoam" the solver starts and I got all the different files. And also here I see no plots.

So my Problems seems to be the missing plots. Maybe because I'm using a VM. But here I'm lacking of experience and knowledge.

From other posts i learned to check my version with "" and got following message:

Machine info: Linux | OF1-TOJW10 | 5.15.0-1007-azure | #8-Ubuntu SMP Wed May 18 18:12:14 UTC 2022 | x86_64 | x86_64

Python version: 3.10.4 (main, Apr  2 2022, 09:04:19) [GCC 11.2.0]

Python executable: /usr/bin/python3

Python 3 is supported with PyFoam
PYTHONPATH is not set

Location of this utility: /usr/local/bin/

 PyFoam WARNING on line 229 of file /usr/local/lib/python3.10/dist-packages/PyFoam/ : Basedir /home/testuser/foam for fork extend does not exist or is not a directory
Version dev (reported as number 9.9.9 )Fork openfoam of the installed 0 versions:

pyFoam-Version: 2021.6

Path where PyFoam was found (PyFoam.__path__) is ['/usr/local/lib/python3.10/dist-packages/PyFoam']

Configuration search path: [('file', '/etc/pyFoam/pyfoamrc'), ('directory', '/etc/pyFoam/pyfoamrc.d'), ('file', '/home/testuser/.pyFoam/pyfoamrc'), ('directory', '/home/testuser/.pyFoam/pyfoamrc.d')]
Configuration files (used): []

Installed libraries:
cython                         :  Yes 	 version: 0.29.28
cProfile                       :  Yes
docutils                       :  No 	 Not necessary. Needed for RestructuredText to HTML conversion
Gnuplot                        :  No 	 Not a problem. Version from ThirdParty is used
hotshot                        :  No 	 Not a problem. Can't profile using this library
line_profiler                  :  No 	 Not a problem. Can't profile using this library
ipdb                           :  No 	 Not necessary. Only makes debugging more comfortable
IPython                        :  No 	 Not necessary. But the interactive shell may be more comfortable
matplotlib                     :  Yes 	 version: 3.5.1
mercurial                      :  No 	 Not a problem. Used for experimental case handling
pytest                         :  No 	 Only needed for running the unit-tests (developers only)
numpy                          :  Yes 	 version: 1.22.4
openpyxl                       :  No 	 Not a problem. Only used for exporting pandas-data to Excel-files (advanced). If xlsxwriter is installed it will handle this (xlsxwriter is recommended anyway)
xlsxwriter                     :  No 	 Not a problem. Only used for exporting pandas-data to XLSX-files (advanced). If openpyxl is installed then this module can handle that
pandas                         :  No 	 Not a problem. Only used for handling of advanced data-handling
ply                            :  Yes 	 version: 3.11
profile                        :  Yes
psyco                          :  No 	 Not a problem. Acceleration not possible
PyQt4                          :  No 	 Only some experimental GUI-stuff relies on this
PyQt4.Qwt5                     :  No 	 Only an alternate plotting back-end
scipy                          :  Yes 	 version: 1.8.0
Tkinter                        :  No 	 Not a problem. Used for the old version of DisplayBlockmesh and some matplotlib-implementations
twisted                        :  Yes 	 version: 22.1.0
vtk                            :  Yes 	 version: 9.1.20211106
xlwt                           :  No 	 Not a problem. Only used for exporting pandas-data to Excel-files
xlrd                           :  No 	 Not a problem. Only used for importing Excel-files to pandas-data
requests                       :  Yes 	 version: 2.25.1
zeroconf                       :  No 	 Not a problem. Necessary to find existing runs. Install with 'pip install zeroconf'
psutil                         :  No 	 Not a problem. Provides better calculation of the maximum used memory
PyFoam.ThirdParty.ply.yacc     :  Yes 	 version: 3.9
PyFoam.ThirdParty.Gnuplot      :  Yes 	 version: 1.8
PyFoam.ThirdParty.tqdm         :  Yes 	 version: 4.8.4
PyFoam.ThirdParty.IPy          :  Syntax Error 	 This is our own. If it is not found we've got problems
PyFoam.ThirdParty.pyratemp     :  Yes 	 version: 0.2.0
PyFoam.ThirdParty.six          :  Yes 	 version: 1.10.0
PyFoam.ThirdParty.winhacks     :  Yes

Library locations
cProfile                       : /usr/lib/python3.10/
cython                         : /usr/lib/python3/dist-packages/
matplotlib                     : /usr/lib/python3/dist-packages/matplotlib/
numpy                          : /usr/local/lib/python3.10/dist-packages/numpy/
ply                            : /usr/lib/python3/dist-packages/ply/
profile                        : /usr/lib/python3.10/
PyFoam.ThirdParty.Gnuplot      : /usr/local/lib/python3.10/dist-packages/PyFoam/ThirdParty/Gnuplot/
PyFoam.ThirdParty.ply.yacc     : /usr/local/lib/python3.10/dist-packages/PyFoam/ThirdParty/ply/
PyFoam.ThirdParty.pyratemp     : /usr/local/lib/python3.10/dist-packages/PyFoam/ThirdParty/
PyFoam.ThirdParty.six          : /usr/local/lib/python3.10/dist-packages/PyFoam/ThirdParty/
PyFoam.ThirdParty.tqdm         : /usr/local/lib/python3.10/dist-packages/PyFoam/ThirdParty/tqdm/
PyFoam.ThirdParty.winhacks     : /usr/local/lib/python3.10/dist-packages/PyFoam/ThirdParty/
requests                       : /usr/lib/python3/dist-packages/requests/
scipy                          : /usr/lib/python3/dist-packages/scipy/
twisted                        : /usr/lib/python3/dist-packages/twisted/
vtk                            : /usr/lib/python3/dist-packages/vtkmodules/

Checking additional envirnoment variables

Checking for PYFOAM_DIR : Location of the PyFoam-installation. Not strictly necessary
PYFOAM_DIR missing from environment

Checking for PYFOAM_SITE_DIR : Location of non-PyFoam-disctributions script. Set and used by some Foam-distributions
PYFOAM_SITE_DIR missing from environment

User information
Username:             testuser
Temporary directory:  /tmp/PyFoam_testuser
Public key:           11c79e2f01c6b614339c63c67c0e5041:14129c7ec2d279d4d0202291ed741b7b
Maybe my gnuplot is wrong or I missed something else. Any suggestion or help is appreciated.

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Old   October 2, 2022, 06:30
Default Pyfoam graphs not showing
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Sanjay R
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I too have the same issue running in ubuntu22.04lts, did you find any solution??
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Old   November 8, 2022, 12:49
Default Solution:
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Sooo I finally managed to start pyFoam probably.

I uninstalled all pyFoam stuff and reinstalled it using pip. But befor that I updated python with a quite nice hint.
sudo pip uninstall pyFoam
sudo apt install python3-pip python-is-python3
sudo pip install pyFoam
After that it worked like it should. I just found that solution with "python-is-python3". For the moment I don't know what it changes but that should be easy to find out by yourself.

Have fun and hopefully this post helps someone!

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