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NLeSC / root-conda-recipes

Conda recipes for building ROOT 5 and ROOT 6 binaries, root_numpy, rootpy, root_pandas, with both Python 2 and Python 3 support.
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Packages based on new Anaconda compilers #33

Closed Zaharid closed 5 years ago

Zaharid commented 6 years ago

It looks like the new compiler tools:

https://conda.io/docs/user-guide/tasks/build-packages/compiler-tools.html

may significantly simplify the recipes here and mitigate some of the problems.

egpbos commented 5 years ago

The NLeSC ROOT Conda package is no longer maintained and does not work properly with current Conda, modern Python, or modern ROOT. Use conda-forge ROOT instead:

Installing in a new environment:

conda create -n myrootenv python=3.7 root -c conda-forge
conda activate myrootenv
conda config --env --add channels conda-forge

From then on, use conda activate myrootenv to get in and conda deactivate to get out of the env. You should have a recent version of conda.

or

Installing in the current environment:

conda config --env --add channels conda-forge 
conda install root

Unlike the NLeSC package, this can even be the base environment if you really want to do that (it is not ideal, since it will be rather invasive, adding things like conda's compiler packages that are needed to compile with ROOT and Conda).

Conda-forge ROOT provides ROOT 6.16.00+, and supports Python 3.7, 3.6, and 2.7 on macOS and Linux. It is being tested by the ROOT team, and is automatically build by the conda-forge infrastructure. All default features and a huge number of optional features are turned on, and you can use it anywhere you would use ROOT, JupyROOT, or PyROOT.