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-3.7.2.tar.gz (27.1 MB view details)

Uploaded Source

Built Distribution

uproot-3.7.2-py2.py3-none-any.whl (102.9 kB view details)

Uploaded Python 2 Python 3

File details

Details for the file uproot-3.7.2.tar.gz.

File metadata

  • Download URL: uproot-3.7.2.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/4.32.2 CPython/3.7.3

File hashes

Hashes for uproot-3.7.2.tar.gz
Algorithm Hash digest
SHA256 36c29a8b26a162b022a4cfe415ba1468f320a0df534baaef4fb755a0040cbfb8
MD5 b384b33e8bc7fad1cfbd7ab82fdcbeb0
BLAKE2b-256 1b57bc724e0e81335940bd84c9629844324de18566e8ef1bd34befc1784820d4

See more details on using hashes here.

File details

Details for the file uproot-3.7.2-py2.py3-none-any.whl.

File metadata

  • Download URL: uproot-3.7.2-py2.py3-none-any.whl
  • Upload date:
  • Size: 102.9 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/4.32.2 CPython/3.7.3

File hashes

Hashes for uproot-3.7.2-py2.py3-none-any.whl
Algorithm Hash digest
SHA256 b824d0cae39cfbbdcdb71ff17e201928095176fc209d46b659875709904d9351
MD5 58c0f7b4991cc658a01ca650e034f3b5
BLAKE2b-256 a786c7789d1f737cfcc8e78c9dc37ac3e4925e22609bfb68711cedf8c74cf9b6

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