uproot-browser is a plotext based command line library in which the command line interface is provided by Click. It is powered by Hist and it's TUI is put together by Textual. Its aim is to enable a user to browse and look inside a ROOT file, completely via the terminal. It takes its inspiration from the ROOT object browser.

Installation

You can install this library from PyPI with pip:

python3 -m pip install uproot-browser

You can also use pipx run or uvx to run the library without installing it; for example, this will let you try it out in one line:

uvx uproot-browser[testdata] --testdata uproot-Event.root

Features

uproot-browser currently provides the following features (get help with -h or --help, view the current version with --version):

• browse can be used to display a TUI (text user interface), acts as default if no subcommand specified.
• plot can be used to display a plot.
• tree can be used to display a tree.

Examples

This example uses data from the scikit-hep-testdata package. The --testdata flag will load from there if it is installed; use the [testdata] extra if you want to play with it.

browse command:

uproot-browser browse --testdata uproot-Event.root

plot command:

uproot-browser plot --testdata uproot-Event.root:hstat
                        hstat -- Entries: 1000
    ┌───────────────────────────────────────────────────────────────┐
18.0┤▐▌                                                             │
    │▐▌                                                 ▗▖         ▄│
15.6┤▐▌▗▖                                               ▐▌         █│
    │███▌               █                           █   ▐▌        ▐█│
13.1┤████▟▌    ▗▖  ▗▖   █▌▗▖ ▐▌       ▄   █▌   ▄  ▟▌█ ▗▄▐▙▗▖    ▐▌▐█│
10.6┤█████▌    ▐▌  ▐▙▖  █▌▐▌ ▐▙       █▄  █▙   █  █▌█ ▐█▟█▐▌  ▗▄▟▌▐█│
    │█████▌ █▌▐█▌  ████▌█▌▐█ ▐█▐▌ ▐▌  ███▐██  ▐█ ▐████▐███▐▌ ▐███▌▐█│
 8.2┤█████▌▐█▌▐█▌ █████▌██▐█ ██▐█ ▐▌▐████▐███▌▐█ █████▐███▐██▐████▐█│
    │████████▙██▌█████████▟█▖████▖▟██████▟██████▖████████████▟██████│
 5.8┤███████████▙███████████▙████▌██████████████▌███████████████████│
    │████████████████████████████▌██████████████████████████████████│
 3.3┤███████████████████████████████████████████████████████████████│
    └┬───────────────┬──────────────┬───────────────┬──────────────┬┘
     0.00          0.25           0.50            0.75          1.00
                               [x] xaxis

You can get an iterm plot, the required dependencies can be installed via:

python3 -m pip install uproot-browser[iterm]

Or can be run via pipx without installing:

pipx run uproot-browser[iterm]

Adding the argument --iterm gives us the plot:

uproot-browser plot --testdata uproot-Event.root:hstat --iterm

tree command:

uproot-browser tree --testdata uproot-Event.root
📁 uproot-Event.root
┣━━ ❓ <unnamed> TProcessID
┣━━ 🌴 T (1000)
┃   ┗━━ 🌿 event Event
┃       ┣━━ 🌿 TObject (group of fUniqueID:uint32_t, fBits:uint32_t)
┃       ┃   ┣━━ 🍁 fBits uint32_t
┃       ┃   ┗━━ 🍁 fUniqueID uint32_t
┃       ┣━━ 🍁 fClosestDistance unknown[]
┃       ┣━━ 🍁 fEventName char*
┃       ┣━━ 🌿 fEvtHdr EventHeader
┃       ┃   ┣━━ 🍁 fEvtHdr.fDate int32_t
┃       ┃   ┣━━ 🍁 fEvtHdr.fEvtNum int32_t
┃       ┃   ┗━━ 🍁 fEvtHdr.fRun int32_t
┃       ┣━━ 🍁 fFlag uint32_t
┃       ┣━━ 🍁 fH TH1F
┃       ┣━━ 🍁 fHighPt TRefArray*
┃       ┣━━ 🍁 fIsValid bool
┃       ┣━━ 🍁 fLastTrack TRef
┃       ┣━━ 🍁 fMatrix[4][4] float[4][4]
┃       ┣━━ 🍁 fMeasures[10] int32_t[10]
┃       ┣━━ 🍁 fMuons TRefArray*
┃       ┣━━ 🍁 fNseg int32_t
┃       ┣━━ 🍁 fNtrack int32_t
┃       ┣━━ 🍁 fNvertex uint32_t
┃       ┣━━ 🍁 fTemperature float
┃       ┣━━ 🌿 fTracks TClonesArray*
┃       ┃   ┣━━ 🍃 fTracks.fBits uint32_t[]
┃       ┃   ┣━━ 🍃 fTracks.fBx Float16_t[]
┃       ┃   ┣━━ 🍃 fTracks.fBy Float16_t[]
┃       ┃   ┣━━ 🍃 fTracks.fCharge Double32_t[]
┃       ┃   ┣━━ 🍃 fTracks.fMass2 Float16_t[]
┃       ┃   ┣━━ 🍃 fTracks.fMeanCharge float[]
┃       ┃   ┣━━ 🍃 fTracks.fNpoint int32_t[]
┃       ┃   ┣━━ 🍃 fTracks.fNsp uint32_t[]
┃       ┃   ┣━━ 🍁 fTracks.fPointValue unknown[][]
┃       ┃   ┣━━ 🍃 fTracks.fPx float[]
┃       ┃   ┣━━ 🍃 fTracks.fPy float[]
┃       ┃   ┣━━ 🍃 fTracks.fPz float[]
┃       ┃   ┣━━ 🍃 fTracks.fRandom float[]
┃       ┃   ┣━━ 🍃 fTracks.fTArray[3] float[][3]
┃       ┃   ┣━━ 🍁 fTracks.fTriggerBits.fAllBits uint8_t[][]
┃       ┃   ┣━━ 🍃 fTracks.fTriggerBits.fBits uint32_t[]
┃       ┃   ┣━━ 🍃 fTracks.fTriggerBits.fNbits uint32_t[]
┃       ┃   ┣━━ 🍃 fTracks.fTriggerBits.fNbytes uint32_t[]
┃       ┃   ┣━━ 🍃 fTracks.fTriggerBits.fUniqueID uint32_t[]
┃       ┃   ┣━━ 🍃 fTracks.fUniqueID uint32_t[]
┃       ┃   ┣━━ 🍃 fTracks.fValid int16_t[]
┃       ┃   ┣━━ 🍃 fTracks.fVertex[3] Double32_t[][3]
┃       ┃   ┣━━ 🍃 fTracks.fXfirst Float16_t[]
┃       ┃   ┣━━ 🍃 fTracks.fXlast Float16_t[]
┃       ┃   ┣━━ 🍃 fTracks.fYfirst Float16_t[]
┃       ┃   ┣━━ 🍃 fTracks.fYlast Float16_t[]
┃       ┃   ┣━━ 🍃 fTracks.fZfirst Float16_t[]
┃       ┃   ┗━━ 🍃 fTracks.fZlast Float16_t[]
┃       ┣━━ 🌿 fTriggerBits TBits
┃       ┃   ┣━━ 🌿 fTriggerBits.TObject (group of fTriggerBits.fUniqueID:uint32_t, fTriggerBits.fBits:uint32_t)
┃       ┃   ┃   ┣━━ 🍁 fTriggerBits.fBits uint32_t
┃       ┃   ┃   ┗━━ 🍁 fTriggerBits.fUniqueID uint32_t
┃       ┃   ┣━━ 🍃 fTriggerBits.fAllBits uint8_t[]
┃       ┃   ┣━━ 🍁 fTriggerBits.fNbits uint32_t
┃       ┃   ┗━━ 🍁 fTriggerBits.fNbytes uint32_t
┃       ┣━━ 🍁 fType[20] int8_t[20]
┃       ┗━━ 🍁 fWebHistogram TRef
┣━━ 📊 hstat TH1F (100)
┗━━ 📊 htime TH1F (10)

Development

See CONTRIBUTING.md for details on how to set up a development environment.

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