Start using PyRoot

[lapan]

I have Ubuntu 22.04
I installed python 3.10.6 and ROOT 6.28/04
But when I try to import ROOT in Python prompt, I get an error

ModuleNotFoundError: No module named ‘ROOT’

How do I start using ROOT in python

[vpadulan]

Hi @lapan ,

Easiest way:

conda create -n myenv -c conda-forge root

This will create a working conda environment with ROOT.

Faster version

ROOT build with Python 3.7 in centos7

Hi, conda is notoriously slow. I find myself much better when using mamba. It’s the same as using conda, but much faster. I suggest you read the docs, but the following steps should already give you a minimal working environment (taken from here): curl -L -O "https://github.com/conda-forge/miniforge/releases/latest/download/Mambaforge-$(uname)-$(uname -m).sh" bash Mambaforge-$(uname)-$(uname -m).sh # The bash script will install mamba into a folder of your choice # For simplicity, in the follo…

Other things you may be doing (not recommended)

Maybe the reason why you get the ModuleNotFoundError is because you tried to install ROOT manually (e.g. by compiling the source code). I suggest you try one of the normal installation modes at Installing ROOT - ROOT

Cheers,
Vincenzo

[eguiraud]

Another common reason is that in the terminal where you started the python prompt you forgot to run source path/to/root/bin/thisroot.sh (see step 4 at Installing ROOT - ROOT ).