Running python scripts using Visit and argparse

[doutriaux1]

Hello,

I have a python script that uses both visit and argparse up until this week my script had the following lines to make it work

p = argparse.ArgumentParser(formatter_class=argparse.ArgumentDefaultsHelpFormatter)
p.add_argument("--visit", default="/usr/gapps/visit/current")
# lots of other p.add_argument here
sys.path.insert(0, os.path.join(
    args.visit, "linux-x86_64/lib/site-packages"))
pth = os.environ["PATH"]
pth = "{}/bin:{}".format(os.path.dirname(args.visit), pth)
os.environ["PATH"] = pth
import visit  # noqa
visit.LaunchNowin()

And everything worked fine with my regular python

But today the visit.LaunchNoWin() line returns (on rztopaz and rzalastor):

ERROR: /lib64/libstdc++.so.6: version `GLIBCXX_3.4.20' not found (required by /usr/gapps/visit/3.1.3/linux-x86_64/lib/libvisitcommon.so)

visit launches fine from the command line. So I figured I would just launch via -cli -s

Unfortunately using

/usr/gapps/visit/bin/visit -cli  -nowin -s ~/git/feature-detection/drivers/elements_snapshot.py -s crp.sql -o ../Hohlraum/HWH_domain_18.ftThresholdChge_0.5.ftNoZ_n.ftNumSeq_10.ftThreshold_0.8.laserPowerMult_1.0.minimalAle_0.NODES_2.NODES_XENA_1.PROC_72.PROCS_XENA_18.meshResolution_0.15.foamDensity_0.35/pngs

Leads to mangling of the -s options and other options seems to be passed to visit as well.

So my question are

1. Any idea how to fix the GLIBCXX_3.4.20' not found
2. If not how can I use argparse and visit -cli together?

Thanks.

[doutriaux1]

Adding: export LD_LIBRARY_PATH=/usr/tce/packages/gcc/gcc-4.9.3/lib64 To my path fixed the loading issue. (figured out this path by using ldd on the problematic library

[doutriaux1]

I would still like to hera about using visit -cli and argparse together though.

[doutriaux1]

Or how to specify a specific version of visit, right now I need the 'visit' executable to be in my path, but pointing to /usr/gapps/visit/3.1.3 does seem to find ny visit executable.

[cyrush]

The std lib path issue is a result of the system python being compiled with different compilers and or different settings than VisIt's python. Glad you could fix with LD_LIB, depending on how much the compilers or the config args change between the two, importing might not even be possible.

visit uses the same launcher to launch all installed version.

If you want the equiv of:

/usr/gapps/visit/bin/visit -v 3.1.3

You could use:

visit.AddArgument("-v 3.1.3")

Before the call to:

visit.LaunchNoWin()