How to contribute to Root Code?

[Sayandeep_Ghosh]

I have read the link given by you and also followed a question related to pythonpath in the newbie section

How to set PYTHONPATH when I obtain "Import ROOT error . No module found"

See if you have “pyroot” among: root-config --features In principle you should not set ROOT related environment variables manually. You should simply: source /full/path/to/your/root/bin/thisroot.sh

In the above question it has been told to export pythonpath in this way to avoid import error:
export PYTHONPATH=$(root-config --libdir)

But even after doing this my import error is still coming and I have also called
source /home/sayang/root-6.24.04/bin/thisroot.sh after exporting pythonpath based on the answer given in the above question. Thanks!