Import ROOT error Ubuntu 16.04, ROOT 6.06.02

ROOT
1

Hi,

I have done the following to import ROOT on Ubuntu 16.04 with ROOT 6.06.02:

sara@sara-Aspire-V5-591G:~$ locate ROOT.py
/home/sara/Downloads/root-6.06.02/bindings/pyroot/ROOT.py
/home/sara/Downloads/root-6.06.02/lib/ROOT.py
/home/sara/Downloads/root-6.06.02/lib/ROOT.pyc
/home/sara/Downloads/root-6.06.02/lib/ROOT.pyo

sara@sara-Aspire-V5-591G:~$ locate libPyROOT.so
/home/sara/Downloads/root-6.06.02/lib/libPyROOT.so

(Currently editing this-)
Then, when I try to run a program:

sara@sara-Aspire-V5-591G:~/Research/proj2_significance/lxplus_files_0418$ python sig_attempt1.py
Traceback (most recent call last):
File “sig_attempt1.py”, line 1, in
import ROOT
File “/home/sara/Downloads/root-6.06.02/lib/ROOT.py”, line 24, in
import cppyy
File “/home/sara/Downloads/root-6.06.02/lib/cppyy.py”, line 60, in
import libPyROOT as _backend
ImportError: /home/sara/Downloads/root-6.06.02/lib/libPyROOT.so: undefined symbol: gCling

Any ideas?