The latest OpenFOAM is 8.x, can we set a really big number to indicate it is latest.

Secondly, ubuntu 's openfoam use a version of 19.06, seems change the origin of source code.

do you happen to know any command to detect openfoam?

do you happen to know any command to detect openfoam?

Do you mean detect foam version or location?

I had a requirement to detect OpenFOAM installation into WSL, to let CFD on windows working with official openfoam.
It once works,now breaks. I am looking for a exe like "foamVersion"

WM_PROJECT_VERSION envvar seems to be the only method.

BTW, this code is unnecessarily complicated. Python can access environment variables:

from os import environ

path = environ.get("WM_PROJECT_DIR", None)
version = environ.get("WM_PROJECT_VERSION", None)
if not version or not path:
    raise RuntimeError("OpenFOAM envvars are not set")

`from os import environ

path = environ.get("WM_PROJECT_DIR", None)
version = environ.get("WM_PROJECT_VERSION", None)
if not version or not path:
raise RuntimeError("OpenFOAM envvars are not set")
`
will only work if FreeCAD is running from linux terminal. It will not work if FreeCAD is started from start manual even for Linux. because all those env var are yet source to bash.

I have updated config.py yesterday. Agree your setting (8, 0) is a solution, to save future error, I set it as 10000, big engouh. Openfoam.com using version 1906

for our latest installation, there should be a command called foamVersion what is the output for your installation.

I have updated config.py yesterday

I don't see this update