CFD Online Discussion Forums - [PyFoam] on Ubuntu 16.04

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Hi all,

I'm having troubles with pyFoam installation. I have followed the wiki:

https://openfoamwiki.net/index.php/C...m#Installation

I didn't success installing in any way (as root, as user, using pip, etc.). I have decided to ask for help step by step.

First, right now I have installed pyfoam using pip. It has been installed into ~/.local/lib/python2.7/site/packages.

This is what I get when I run the steps proposed in the wiki page>

Code:

dan@dan-Gazelle:~$ python

Python 2.7.11+ (default, Apr 17 2016, 14:00:29) 

[GCC 5.3.1 20160413] on linux2

Type "help", "copyright", "credits" or "license" for more information.

>>> import PyFoam

>>> import PyFoam.FoamInformation

>>> print PyFoam.FoamInformation.foamTutorials()



>>> import sys

>>> print sys.path

['', '/usr/lib/python2.7/dist-packages', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-x86_64-linux-gnu', '/usr/lib/python2.7/lib-tk', '/usr/lib/python2.7/lib-old', '/usr/lib/python2.7/lib-dynload', '/home/dan/.local/lib/python2.7/site-packages', '/usr/local/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages/gtk-2.0']

>>> 

dan@dan-Gazelle:~$ pyFoamVersion.py

Traceback (most recent call last):

  File "/usr/local/bin/pyFoamVersion.py", line 4, in <module>

    __import__('pkg_resources').run_script('PyFoam==0.6.5', 'pyFoamVersion.py')

  File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 719, in run_script

    self.require(requires)[0].run_script(script_name, ns)

  File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 1496, in run_script

    raise ResolutionError("No script named %r" % script_name)

pkg_resources.ResolutionError: No script named 'pyFoamVersion.py'

What is it that I am doing wrong? Would anyone recommend a better way?

Thanks in advance

Hi
I dont know what is wrong but I can tell you that I installed pyfoam on ubuntu16.04 with pip and it worked like a charm.
Now for scientific work I use a locally installed anaconda python installation instead of the systm one's. It make things easier for me.

Thank you jf_vt,

It is very good to hear that there should not be a problem at least! :)

Now I simply need to find mine... :o

Thanks!

PS: I'll check out the anaconda stuff too, the website looks fine, I wanna get my superpowers too ... hehehe

your python version in /usr/lib it is a system installed version
it is usually not recomended to customize system version whih is used by the system.
I had install problems similar to yours in the past ( not with pyfoam) which I did not try to solve once I was advised to install my own version of python to work with( anaconda is a popular choice I like but you have many other options)
google it and you will find everyting you need.
JF

Hei,

I have already tried to have a different version of python, in my case I used 3.5.2 in a user folder. It didn't succeed either.

I just saw today that there is a very new version of pyFoam (1 day old), the 0.6.6. These pyFoam amazing people just updated some details of the wiki page recommending the "pip" installation. I have tried to download as pip (succeed) but when I tried to import pyFoam in my python I got the following message:

Code:

dan@dan-Gazelle:~/src$ python

Python 2.7.12 (default, Jul  1 2016, 15:12:24) 

[GCC 5.4.0 20160609] on linux2

Type "help", "copyright", "credits" or "license" for more information.

>>> import pyFoam

Traceback (most recent call last):

  File "<stdin>", line 1, in <module>

ImportError: No module named pyFoam

>>>

It happened with my default python 2.7.12 installation and with my 3.5.2 shot.

Hopefully the following hours-days the wiki page will be a bit more detailed, if not, please, anybody could drop some light? I am really willing to use pyFoam.

Thank you very much

Hi,
Can it be just a typo in your case? From the same link you posted, it looks like PyFoam has a capital P

Code:

import PyFoam 

import PyFoam.FoamInformation 

print PyFoam.FoamInformation.foamTutorials()

In my case I managed to install PyFoam, but I cannot use it in OpenFoam4.0. I wanted to use the command

Code:

pyFoamPlotRunner.py MySolverName

but I only get

Code:

pyFoamPlotRunner.py: command not found

Is anybody aware if the combo with OF4.0 is a successful one?
Thanks

Cheers

Amazing,

My two posts (first and last) disagree with the capital 'P' or not capital 'p'.

I'll try it at some point in the following days and I write down my results.

Thank you!

Oh and another thing that may help, but I am sure you have already checked it.
Before typing python and do all that import bla bla bla, I think you have to be in the openFoam shell

I have used pip install PyFoam.everything seems well.But when i use print PyFoam.there is no message feedback.i hope someone can help me out...

Sent from my iPhone using CFD Online Forum mobile app

Quote:

Originally Posted by zlw306 (Post 656073)

I have used pip install PyFoam.everything seems well.But when i use print PyFoam.there is no message feedback.i hope someone can help me out...

Quick questions:

Which specific installation mode did you use? Did you install it as root or as normal user?
Does this command work?

Code:

pyFoamVersion.py --help
Why did you try using "print PyFoam"?

Quote:

Originally Posted by wyldckat (Post 656348)

Quick questions:

Which specific installation mode did you use? Did you install it as root or as normal user?
Does this command work?

Code:

pyFoamVersion.py --help
Why did you try using "print PyFoam"?

I have figured it out.i used pip install pyfoam follow the openfoam wiki.but it default install dir is not the same with the environment variable writed on the openfoam wiki.So i need to change the pythonpath to where the pyfoam installed.

Sent from my iPhone using CFD Online Forum mobile app

Minisasi you were right about the upper-lower case mistake.... :D

Thank you!

I had the same problem and FInally I figured it out as follows:

python3.8
Python 3.8.10 (default, Nov 26 2021, 20:14:08)
[GCC 9.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import PyFoam
>>> import PyFoam.FoamInformation
>>> print (PyFoam.FoamInformation.foamTutorials())
/opt/openfoam8/tutorials

Pay attention to first command python3.8
and also the print, it should be written inside pranthesis