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quai

Interactive Quarb — a session REPL where every line becomes a reusable query.

pip install quai
quai data.json

quai opens a session over one or more sources and holds it. Each line you run is labelled &1, &2, … — and every label is a reusable macro: not the printed value, but the query that produced it, ready to continue through the pipe. It is the notebook loop, cell by cell, except a cell is a path into your data.

&1  /teams/*/members/*
    /teams/0/members/0  ⋮  (every member, across all teams, one path)
&2  &1 | [/langs/*:: = 'Go'] | /name::
    ada
    eu
&3  &1 @| count
    6
  • &N re-runs line N; continue with a pipe (&N | /key::, &N | [pred], &N @| count).
  • &N# replays line N's output frozen, as it was when it ran.
  • def &x: … ; adds a named fragment; :history, :reset, :help, :quit are the commands.

The engine rides in on the quarb dependency, so quai reaches every local source quarb does — JSON, YAML, TOML, CSV, XML, HTML, Markdown, SQLite, kaiv, the filesystem, git, archives, XLSX, and source code — and several at once mount under one root for cross-source <=> joins.

Try it in the browser at demo.quarb.org/quai (no install), and read the graph cookbook for the recipes.

License

Licensed under either of Apache License, Version 2.0 or the MIT license at your option.

Metadata

Release files for quai 0.21.0

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