Link Search Menu Expand Document

Scikit-HEP project - welcome!

Scikit-HEP GitHub Org Gitter badge

The Scikit-HEP project is a community-driven and community-oriented project with the aim of providing Particle Physics at large with an ecosystem for data analysis in Python. Read more β†’


Manipulate arrays of complex data structures as easily as Numpy.

Units and constants in the HEP system of units.

Data manipulation and interoperability:

Easy conversions between different styles of expressions.

Interface between ROOT and NumPy.

Module for conveniently loading/saving ROOT files as pandas DataFrames.

Minimalist ROOT I/O in pure Python and Numpy.

Pythonic behaviours for non-I/O related ROOT classes.


Convert between histogram representations

Python bindings for the C++14 Boost::Histogram library.

Hist is a analyst friendly front-end for boost-histogram, designed for Python 3.6+.

Versatile, high-performance histogram toolkit for Numpy.

❌ Deprecated

Particles and decays:

Describe and convert particle decays between digital representations.

PDG particle data and identification codes.


GPU/OpenMP fitting in Python and C++.

🀝 Affiliated

MINUIT from Python - Fitting like a boss.

Cost function builder. For fitting distributions.

❌ Deprecated

Scalable Pythonic fitting

🀝 Affiliated


Statistics tools and utilities.

pure-Python implementation of HistFactory models.

Interface to HEP libraries:

Interface between Pythia and NumPy.

Next generation Python bindings for HepMC3.

Interface between FastJet and NumPy.

Lightweight Python interface to read Les Houches Event (LHE) files.

Machine Learning:

Collection of tools and algorithms to enable conversion of HEP ML to mass usage model.


Plotting and styling helpers for matplotlib.

View Vega/Vega-Lite plots in your web browser from local or remote Python processes.


A utility for building all PyPI supported binary wheels on all CI systems. See our guide for instructions.

🀝 Affiliated

CERN’s ROOT on Conda-Forge.

🀝 Affiliated

Toolset of interfaces and tools for Particle Physics. To become a metapackage.

Common package to provide example files (e.g., ROOT) for testing and developing packages against.

In some cases, the packages provide a bridge between different technologies and/or popular packages from the Python scientific software stack.