RE: [LabPython-Users] Question about Labpython and Labview under Linux

[Rolf K. <rol...@ci...>]

Stappers, F.P.M. wrote:

> I've installed Linux (SuSE-10.0), Python 2.2.3, Labview7, 
> OpenG and Labpython under Linux. However when I try want to 
> to output my a connector I'm not able to select a datatype. 
> 
> However when I do the same under MS Windows it al works fine. 
> So my question is, what am I doing wrong.
> 
> PS: Everything is correct installed and I think it has 
> something to do with the python22.dll (which is for windows 
> offcourse).

LabPython has not really been tested for Linux yet as I never
tested if and how the scripting interface would need to be
adapted to work for LabVIEW for Linux. You would definitely
need to create the Linux shared library first and install that
One into your LabVIEW folder. But the last version I created
crashed LabVIEW consistently. Putting pyscript.dll into the
according LabVIEW resource folder will not do anything as this
is a Windows shared library and can't be loaded by LabVIEW for
Linux nor will it even attempt to.

Python22.dll can't possibly work eitehr since it is Windows too
and there would need to be a pythonXX.so instead on your system
for the scripting interface library to link to.

But as said my tests with LabPython on Linux were very limited
And there seems to be a regression in some revision of Python 2.4
that was caused by a security fix to Python that prevents LabVIEW
from unloading the script node shared library after it has been
used. This is under Windows but I would expect a similar problem
under Linux too.

Currently I have no time to spend on investigating this LabPython
Problem nor on trying to figure out how this needs to be configured
to work under various Linux and LabVIEW versions.

Rolf Kalbermatter