Skip to main content

ROOT I/O in pure Python and Numpy.

Project description

uproot

uproot (originally μproot, for “micro-Python ROOT”) is a reader and a writer of the ROOT file format using only Python and Numpy. Unlike the standard C++ ROOT implementation, uproot is only an I/O library, primarily intended to stream data into machine learning libraries in Python. Unlike PyROOT and root_numpy, uproot does not depend on C++ ROOT. Instead, it uses Numpy to cast blocks of data from the ROOT file as Numpy arrays.

Python does not necessarily mean slow. As long as the data blocks (“baskets”) are large, this “array at a time” approach can even be faster than “event at a time” C++. Below, the rate of reading data into arrays with uproot is shown to be faster than C++ ROOT (left) and root_numpy (right), as long as the baskets are tens of kilobytes or larger (for a variable number of muons per event in an ensemble of different physics samples; higher is better).

https://raw.githubusercontent.com/scikit-hep/uproot/master/docs/root-none-muon.png https://raw.githubusercontent.com/scikit-hep/uproot/master/docs/rootnumpy-none-muon.png

uproot is not maintained by the ROOT project team, so post bug reports here as GitHub issues, not on a ROOT forum. Thanks!

Installation

Install uproot like any other Python package:

pip install uproot                        # maybe with sudo or --user, or in virtualenv

or install with conda:

conda config --add channels conda-forge   # if you haven't added conda-forge already
conda install uproot

The pip installer automatically installs strict dependencies; the conda installer installs optional dependencies, too.

Strict dependencies:

Optional dependencies:

  • lz4 to read lz4-compressed ROOT files

  • lzma to read lzma-compressed ROOT files in Python 2

  • xrootd to access remote files through XRootD

  • requests to access remote files through HTTP

Reminder: you do not need C++ ROOT to run uproot.

Tutorial

See the project homepage for a tutorial.

Run that tutorial on Binder.

Reference documentation

Release history Release notifications | RSS feed

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

uproot-3.5.0rc2.tar.gz (25.9 MB view details)

Uploaded Source

Built Distribution

uproot-3.5.0rc2-py2.py3-none-any.whl (95.4 kB view details)

Uploaded Python 2 Python 3

File details

Details for the file uproot-3.5.0rc2.tar.gz.

File metadata

  • Download URL: uproot-3.5.0rc2.tar.gz
  • Upload date:
  • Size: 25.9 MB
  • Tags: Source
  • Uploaded using Trusted Publishing? No
  • Uploaded via: twine/1.13.0 pkginfo/1.5.0.1 requests/2.21.0 setuptools/41.0.0 requests-toolbelt/0.9.1 tqdm/4.31.1 CPython/3.7.1

File hashes

Hashes for uproot-3.5.0rc2.tar.gz
Algorithm Hash digest
SHA256 138857350b09864a9e5d0726ad415931bd7b5d21c198ec7036e8b2d483f6c7c1
MD5 96bf94b63b51727b93c2ecacd37dfb64
BLAKE2b-256 9d470329e8622b8a6704d27b3efa7b304594eb5a35555df46fe4795f65e874bd

See more details on using hashes here.

File details

Details for the file uproot-3.5.0rc2-py2.py3-none-any.whl.

File metadata

  • Download URL: uproot-3.5.0rc2-py2.py3-none-any.whl
  • Upload date:
  • Size: 95.4 kB
  • Tags: Python 2, Python 3
  • Uploaded using Trusted Publishing? No
  • Uploaded via: twine/1.13.0 pkginfo/1.5.0.1 requests/2.21.0 setuptools/41.0.0 requests-toolbelt/0.9.1 tqdm/4.31.1 CPython/3.7.1

File hashes

Hashes for uproot-3.5.0rc2-py2.py3-none-any.whl
Algorithm Hash digest
SHA256 c69b36cd7c4017ee5d9fd2feec015f20568b40b80418b5d41d0eebb896758b6c
MD5 fb5eed69dbb6e14c5cf5495e4df07898
BLAKE2b-256 510e2244b7396cc918d03765e181fcbbc1308488c63d4f6ae1fd270890bf7000

See more details on using hashes here.

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page