Install root_numpy failing

[sergioGF]

Hello All,

I have an anaconda environment where I want to install root_numpy.

To do so I do:

pip install root_numpy

And I get:

======================================================================
Collecting root_numpy
Using cached https://files.pythonhosted.org/packages/d5/5f/82f5111c22599676eb8b5f9b1bf85c38dcc7995d52cd6b4a8f5f5caa4659/root_numpy-4.8.0.tar.gz
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
File “”, line 1, in
File “/tmp/pip-install-HWhk7r/root-numpy/setup.py”, line 69, in
"root-config is not in PATH and ROOTSYS is not set. "
RuntimeError: root-config is not in PATH and ROOTSYS is not set. Is ROOT installed correctly?

----------------------------------------

Command “python setup.py egg_info” failed with error code 1 in /tmp/pip-install-HWhk7r/root-numpy/

======================================================================

The machine I do this is one of the GRID of my university. Root is installed there, and I can use it doing:

lsetup root

However, If I do that, I can no longer use “pip install …”

My question is, how do I setup the machino so I can use both my anaconda features but also root_numpy?

Thanks!

[etejedor]

Dear @sergioGF

root_numpy is an external package and therefore it is not supported by ROOT, so unfortunately we cannot be of much help here.

Enric

[Danilo]

Hi Sergio,

what is the functionality you are after? ROOT already provides quite some interoperability with NumPy and you may not need root_numpy…

Cheers,
D

[sergioGF]

Hi,

I actually only need the function root2array inside root_numpy.

Best,
Sergio

[etejedor]

Hi @sergioGF

Please note that you have the equivalent functionality in ROOT already, with TTree.AsMatrix:

https://root.cern.ch/doc/master/pyroot002__TTreeAsMatrix_8py.html

Cheers,
Enric

[sergioGF]

Hi @etejedor

Well, that looks exactly like what I needed!

Thanks a lot!
Sergio