Python error massage "No module named "ROOT"" although ROOT is installed

Newbie
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1

Hello,
Im a newbie to ROOT and PyROOT and recently installed ROOT via Ubuntu, which i wanted to use for my project. However Python is not able to find the module “ROOT” and I cant figure out why. I will be glad for any help.
Thanks

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2

Welcome to the ROOT Forum!
Make sure ${ROOTSYS}/lib is is in your ${PYTHONPATH}. This is usually automatically set when sourcing root/bin/thisroot.sh.

3

Thanks for reply,
Im not sure how to check if ROOTSYS is in my PYTHONPATH. My sourcing is at the bottom of the screenshot

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4

echo ${ROOTSYS}
echo ${PYTHONPATH}

For example:

source build/master/bin/thisroot.sh
ubuntu@root-cmake-devel:~$ echo ${ROOTSYS}
/home/ubuntu/build/master
ubuntu@root-cmake-devel:~$ echo ${PYTHONPATH}
/home/ubuntu/build/master/lib
ubuntu@root-cmake-devel:~$
5

Ok, I reinstalled Python and ROOT to Windows, ROOT and “import ROOT” in Python works just fine, however it works only via command line after using “\root_v6.32.02.win64.vc17\root\bin\thisroot.bat”

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6

That’s what the instructions say.