This is the way to install ROOT CERN in Google Colab,.

ROOT-Colab.sh

# This code is for installing ROOT on Google Colab to be able to install root_numpy and root_pandas package later
# for version of this code which work with python3 visit 
#https://gist.github.com/MohamedElashri/1b0367992988f053a02dbfd5797fb59e


!mkdir -p APPS
!pwd
!cd APPS && wget https://root.cern.ch/download/root_v6.13.08.Linux-ubuntu18-x86_64-gcc7.3.tar.gz 
!cd APPS && tar -xf root_v6.13.08.Linux-ubuntu18-x86_64-gcc7.3.tar.gz

import sys
sys.path.append("/content/APPS/root/lib")
import ctypes
ctypes.cdll.LoadLibrary('/content/APPS/root/lib/libMultiProc.so')
ctypes.cdll.LoadLibrary('/content/APPS/root/lib/libCore.so')
ctypes.cdll.LoadLibrary('/content/APPS/root/lib/libThread.so')
ctypes.cdll.LoadLibrary('/content/APPS/root/lib/libImt.so')
ctypes.cdll.LoadLibrary('/content/APPS/root/lib/libRIO.so')
ctypes.cdll.LoadLibrary('/content/APPS/root/lib/libNet.so')
ctypes.cdll.LoadLibrary('/content/APPS/root/lib/libGraf3d.so')
ctypes.cdll.LoadLibrary('/content/APPS/root/lib/libTreePlayer.so')
ctypes.cdll.LoadLibrary('/content/APPS/root/lib/libMultiProc.so')
ctypes.cdll.LoadLibrary('/content/APPS/root/lib/libTree.so')
ctypes.cdll.LoadLibrary('/content/APPS/root/lib/libMathCore.so')
ctypes.cdll.LoadLibrary('/content/APPS/root/lib/libMatrix.so')
ctypes.cdll.LoadLibrary('/content/APPS/root/lib/libHist.so')
ctypes.cdll.LoadLibrary('/content/APPS/root/lib/libGraf.so')

import ROOT

h = ROOT.TH1F("gauss","Example histogram",100,-4,4)
h.FillRandom("gaus")
c = ROOT.TCanvas("myCanvasName","The Canvas Title",800,600)
h.Draw()
c.Draw()

Hi Mohamed,

Thank you so much for this! It worked great for me.