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 also installs optional dependencies (except for Pandas).

Strict dependencies:

Optional dependencies:

  • lz4 to read/write lz4-compressed ROOT files

  • xxhash to write lz4-compressed ROOT files

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

  • xrootd to access remote files through XRootD

  • requests to access remote files through HTTP

  • pandas to fill Pandas DataFrames instead of Numpy arrays

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

Tutorial

See the project homepage for a tutorial.

Run that tutorial on Binder.

Tutorial contents:

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-3.7.0.tar.gz (27.1 MB view details)

Uploaded Source

Built Distribution

uproot-3.7.0-py2.py3-none-any.whl (101.9 kB view details)

Uploaded Python 2 Python 3

File details

Details for the file uproot-3.7.0.tar.gz.

File metadata

  • Download URL: uproot-3.7.0.tar.gz
  • Upload date:
  • Size: 27.1 MB
  • Tags: Source
  • Uploaded using Trusted Publishing? No
  • Uploaded via: twine/1.13.0 pkginfo/1.5.0.1 requests/2.22.0 setuptools/41.0.1 requests-toolbelt/0.9.1 tqdm/4.32.1 CPython/3.7.3

File hashes

Hashes for uproot-3.7.0.tar.gz
Algorithm Hash digest
SHA256 2f683080d08c237360878b468f60a035b343ebaf0d85818bbda401054fa19a3e
MD5 6a6f1962fbdf73ecf129a2fc0fc35baf
BLAKE2b-256 998154083bcccf8f645b4a01d6fdafcba13807746cf520dbc01564e5532ac888

See more details on using hashes here.

File details

Details for the file uproot-3.7.0-py2.py3-none-any.whl.

File metadata

  • Download URL: uproot-3.7.0-py2.py3-none-any.whl
  • Upload date:
  • Size: 101.9 kB
  • Tags: Python 2, Python 3
  • Uploaded using Trusted Publishing? No
  • Uploaded via: twine/1.13.0 pkginfo/1.5.0.1 requests/2.22.0 setuptools/41.0.1 requests-toolbelt/0.9.1 tqdm/4.32.1 CPython/3.7.3

File hashes

Hashes for uproot-3.7.0-py2.py3-none-any.whl
Algorithm Hash digest
SHA256 22a7ae9d1c4accb2cd0da30b66c5ce2a17a2bb3eb3c354505d0d462f73816d38
MD5 b95419895803cd597f72c694d7f28c98
BLAKE2b-256 a2bfba4b2905c6e55d247b8bb5b0d4697f46b74cfead3a9d2e0cd3f86d12199a

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