So you need to get the shared libraries loaded. The easiest way of doing this
that I can think of is by setting them in the LD_PRELOAD environment variable
before starting Python. There might be an easier way, but it doesn't
immediately occur to me. I just gave it a try by using "find" to find
everything in the NOX build directory with ".so" in it, and then had to
manually add in libboost_filesystem.so as well.
-- Murphy
On Nov 22, 2010, at 9:53 PM, Alec Story wrote:
> I'm running a pretty old version of nox, but that change didn't help, I got
> the same error:
>
> [...]
> File "/home/openflow/pronto/src/frenetic_net.py", line 14, in <module> <--
> file I'm trying to import without nox running
> import nox.lib.core as nox_core
> File "/home/openflow/noxcore/build/src/nox/lib/core.py", line 24, in
> <module>
> from nox.coreapps.pyrt.pycomponent import *
> File "/home/openflow/noxcore/build/src/nox/coreapps/pyrt/pycomponent.py",
> line 25, in <module>
> _pycomponent = swig_import_helper()
> File "/home/openflow/noxcore/build/src/nox/coreapps/pyrt/pycomponent.py",
> line 21, in swig_import_helper
> _mod = imp.load_module('_pycomponent', fp, pathname, description)
> ImportError:
> /home/openflow/noxcore/build/src/nox/coreapps/pyrt/_pycomponent.so: undefined
> symbol: _ZTIN5vigil5EventE
>
> My version information is:
> NOX 0.8.0~core~beta (nox_core), compiled Aug 18 2010 14:32:14
> Compiled with OpenFlow 0x01
>
>
> On Tue, Nov 23, 2010 at 12:42 AM, Reid Price <r...@nicira.com> wrote:
> Hi Alec,
>
> Have you tried just adding the base directory to sys.path? It would be the
> level that matches the src/ directory structure, in the built/compiled
> version. I think you should then be able to do things like "import
> nox.netapps.discovery.discovery as discovery" successfully. Would this help
> with what you're trying to do? This worked for me at one point, but I
> haven't tried it with recent versions of nox.
>
> -Reid
>
> On Mon, Nov 22, 2010 at 9:07 PM, Alec Story <av...@cornell.edu> wrote:
> Hi,
>
> I'd like to be able to link against nox (for the purpose of running unit
> tests that depend on nox but don't actually need it to be running) without
> invoking the nox binary, in python. If I try to do this naively by adding
> all of nox's subdirectories to sys.path, I get swig errors, so clearly that's
> not the right way to do it.
>
> Is there a way to get this linking to work?
>
> --
> Alec Story
> Cornell University
> Biological Sciences, Computer Science 2012
>
> _______________________________________________
> nox-dev mailing list
> nox-dev@noxrepo.org
> http://noxrepo.org/mailman/listinfo/nox-dev_noxrepo.org
>
>
>
>
>
> --
> Alec Story
> Cornell University
> Biological Sciences, Computer Science 2012
> _______________________________________________
> nox-dev mailing list
> nox-dev@noxrepo.org
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