Pyroot error: No module named ROOT

[ROOTer1]

Dear,

I’m trying to use ROOT in python locally on a linux machine.
When I try to import ROOT in a python script, I get: No module named ROOT

Is there a way to check which python version I need to have pyroot working?

[Wile_E_Coyote]

Python: No module named 'root'

You MUST use EXACTLY the same Python version (and the same compiler) that your ROOT binaries were built for (otherwise, expect mysterious crashes anywhere, anytime): root-config --python-version # C/C++ calling python ; root-config --python2-version # python 2 calling C/C++ ; root-config --python3-version # python 3 calling C/C++ ; BTW. Remember to “source /the/location/of/ROOT/bin/thisroot.sh” to add your ROOT executables and libraries to your environment (when ROOT is not installed in some “…

[ROOTer1]

Hi Wile, thanks a lot! if I match both versions, do I need to compile anything before trying “import ROOT”?

[Gulshan212]

Hello, this is Gulshan Negi
Well, I searched about it on the internet, and I found that you do not need to compile anything before trying to import the ROOT module in Python. However, ROOT must be installed correctly on your system, which may necessitate a compilation step during installation.
Thanks

[vpadulan]

Dear all,

ROOT can be installed in various ways on your machine, see Installing ROOT - ROOT.
For the easiest Python installation, use conda, even better with mamba as suggested in another forum post. No need to compile anything on your own.

Cheers,
Vincenzo