Error when trying to import ROOT in python (ImportError: libtbb.so.2)

[attikis]

Dear experts,

I experience a problem when trying to import ROOT in python:

python
Python 2.7.15+ (default, Jun 14 2019, 20:12:46)
[GCC 9.1.1 20190508] on linux2
Type “help”, “copyright”, “credits” or “license” for more information.

import ROOT
Traceback (most recent call last):
File “”, line 1, in
File “/cvmfs/cms.cern.ch/slc7_amd64_gcc900/lcg/root/6.18.04/lib/ROOT.py”, line 24, in
import cppyy
File “/cvmfs/cms.cern.ch/slc7_amd64_gcc900/lcg/root/6.18.04/lib/cppyy.py”, line 61, in
import libPyROOT as _backend
ImportError: libtbb.so.2: cannot open shared object file: No such file or directory

Any clues for what might be wrong?

Thank you,
Alexandros

_ROOT Version: 6.18.04
_Platform: slc7 (amd64)
_Compiler: gcc 9.3.0

[Wile_E_Coyote]

Try: sudo yum install tbb

[attikis]

Hi @Wile_E_Coyote,

I don’t think that’s an option on the remote machine I am working with (no sudo privileges).
Any workaround?

Cheers,
Alexandros

[attikis]

NOTE: I just realised that even launching ROOT results in an error:
cling::DynamicLibraryManager::loadLibrary(): libtbb.so.2: cannot open shared object file: No such file or directory

[Wile_E_Coyote]

Try to find a ROOT binary distribution for which “root-config --features” will contain “builtin_tbb”.

[attikis]

I will try that. What is the recommended way of going about to do that?