---
id: okonomiyaki
version: "3.0.0"
license: BSD-3-Clause
license_treatment: permissive
maintenance: aging
---

# okonomiyaki — Self-contained library to deal with metadata in Enthought-specific egg and runtime archives

License: permissive · Maintenance: aging · Downloads: 282.1K/mo

## What it is and what it does

Okonomiyaki is a low-level library for handling Enthought egg archives and runtime metadata. It provides object models for version parsing (supporting EnpkgVersion and PEP 440 formats), platform representation and normalization (handling legacy EDM platform strings like rh5-64 and modern ARM/ARM64 architectures), and egg metadata extraction. The library is designed around immutable, hashable instances suitable for use as dictionary keys.

The package is split into optional extras: the base install provides version parsing only, okonomiyaki[platforms] adds platform detection and normalization, and okonomiyaki[formats] adds egg metadata and archive tools. It supports Python 3.6 through 3.12 and is intended to consolidate Enthought's internal egg and package tooling into a reusable library.

Use it for:

- Parse and compare version strings in Enthought egg format (e.g., "1.3.3-1") for dependency resolution.
- Normalize legacy EDM platform identifiers (rh5-64, rh6_x86_64) to canonical forms for cross-platform compatibility.
- Extract and validate metadata from Enthought .egg archives without manual low-level parsing.
- Detect the running system's platform and architecture, including ARM64 on Apple Silicon.
- Build or validate package metadata conforming to pkg-info versions 2.1 through 2.4.

## Worth the install?

AI-flagged interpretation of the facts above — verify before relying.

Okonomiyaki parses and manipulates metadata for Enthought egg archives and runtime distributions, including version normalization, platform identification, and package metadata handling.

Yes, if you work with Enthought egg archives or need robust version and platform normalization for EDM/enpkg tooling. The library is stable and supports current Python versions. No, if you need active maintenance or are building on a general-purpose package ecosystem—this is a specialized tool for Enthought's legacy packaging format, not a general dependency.

## Install

pip install okonomiyaki
uv add okonomiyaki
poetry add okonomiyaki

## Installing okonomiyaki

Before you install: Low install friction with no runtime dependencies. Maintenance status is aging—last release was 546 days ago, though the repository remains active with recent commits and no archived status.

License in practice: BSD-3-Clause is permissive; you may use, modify, and distribute the package freely provided you retain the license notice and disclaimer.

Quickstart:

pip install okonomiyaki

from okonomiyaki.versions import EnpkgVersion
v1 = EnpkgVersion.from_string("1.3.3-1")
v2 = EnpkgVersion.from_string("1.3.2-3")
assert v1 > v2

Requires Python >= 3.6. Platform and egg metadata features require optional extras (okonomiyaki[platforms] or okonomiyaki[formats]).

Verify before relying:

- Whether the aging maintenance status (546 days since last release) affects stability for current Python 3.10–3.12 environments.
- Real-world adoption beyond Enthought's internal tooling; popularity tier suggests niche use.

## Package facts

- License: BSD-3-Clause (permissive)
- Python support: supports_current
- Install friction: low
- Maintenance: aging
- Downloads: 282.1K/month (top 15,000 on PyPI)
- Known vulnerabilities: none known

## Tags

egg metadata parsing, version normalization, platform detection, enthought package tools, egg archive handling, package metadata extraction, edm enpkg compatibility, enthought-ecosystem, package-metadata, version-parsing

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