chili

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Chili

A programming language for data analysis and engineering, written in Rust.

Chili uses Polars for data manipulation and Arrow/Parquet for data storage.

Language Syntaxes

Chili provides two language syntaxes:

  • chili — a modern syntax similar to JavaScript.
  • pepper — a vintage syntax similar to q.

Features

  • Polars-powered — full Polars DataFrame support for high-performance data manipulation
  • Arrow / Parquet storage — native support for columnar data formats
  • Partitioned tables — date-partitioned Parquet storage with partition pruning
  • Lazy evaluation — lazy DataFrames with collect for deferred computation
  • IPC / TCP — built-in TCP listener for remote connections
  • Tick / Sub — publish-subscribe infrastructure for real-time data
  • Job scheduler — periodic job execution and memory monitoring
  • Cross-platform — Linux, macOS, and Windows

Installation

Via pip (recommended)

pip install chili-pie

From source

cargo build --release --bin chili

Python bindings (chili-sauce)

pip install chili-sauce

Quick Start

Launch the REPL:

# chili syntax (default)
chili

# pepper syntax
chili -P

Evaluate a script:

chili script.chi

Architecture

crates/
├── chili-bin      # CLI binary & REPL
├── chili-core     # Engine state, evaluator, IPC, and built-in functions
├── chili-op       # Data operations (partitioned I/O, scan, eval)
└── chili-parser   # Chumsky-based parser for both syntaxes
Package Description
chili-pie Chili runtime distributed as a Python wheel
chili-sauce Python bindings for EngineState via PyO3

Development

# Build
cargo build --bin chili

# Test
cargo test

# Clippy
cargo clippy --fix --allow-dirty

# Build & install Python runtime wheel
maturin build --release --out dist --manifest-path crates/chili-bin/Cargo.toml

# Build & install Python bindings
maturin develop --release --manifest-path crates/chili-py/Cargo.toml

A Taskfile is provided for common workflows — run task --list to see all available tasks.

References

  • Polars — an open-source library for data manipulation
  • chumsky — a high-performance parser combinator library
  • kola — source code reused for interfacing with q
  • Nushell — a new type of shell

Thanks to the authors of these projects and all other open-source projects for their great work.

License

MIT

Project links

Data verified by PyPI on Aug 18, 2026
Data provided by the project maintainers, verified at the time the release was uploaded to PyPI.

Key dates

PyPI data
Data sourced directly from PyPI's database.
  • Released:
Newer release available (0.10.7)

1 maintainer

PyPI data
Data sourced directly from PyPI's database.
Avatar for hinmeru from gravatar.com hinmeru

Credits

Author: hinmeru

GitHub Statistics

Data verified by PyPI on Aug 18, 2026
The GitHub source repository was provided by the project maintainers and verified by PyPI at the time of upload. Stars, forks, and open issues/PRs are derived from that repository and have not been independently verified.

Requires

Python >=3.7

Tags

chili

Classifiers

Report project as malware

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