---
id: arnparse
version: "0.0.2"
license: unclear
license_treatment: unclear
maintenance: abandoned
---

# arnparse — Parse ARNs using Python

License: unclear · Maintenance: abandoned · Downloads: 688.2K/mo

## What it is and what it does

arnparse is a lightweight Python library that takes an Amazon Resource Name (ARN) string and breaks it into its structural components: partition, service, region, account ID, resource type, and resource identifier. It handles the variation in ARN formats across different AWS services—some ARNs omit region or account ID, others use colons or slashes to delimit resource types—and exposes each component as an attribute on the parsed object.

The package has no runtime dependencies and installs with minimal friction. However, it has been abandoned since October 2019 with no updates to handle new AWS services or ARN format changes. The license treatment is unclear, which may pose a compliance risk depending on your use case.

Use it for:

- Extract the AWS account ID and region from an ARN in an IAM policy or resource tag for audit or routing logic
- Parse S3 ARNs to identify bucket names and object paths in access control or logging workflows
- Decompose EC2, VPC, or CloudWatch ARNs to validate resource ownership or build resource-aware monitoring dashboards
- Validate and normalize ARN strings in configuration files or API responses before passing them to AWS SDK calls

## Worth the install?

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

Parses Amazon Resource Names (ARNs) into their component parts—partition, service, region, account ID, resource type, and resource—to extract structured information from ARN strings.

No. The package is abandoned (last update March 2019, repository archived) with an unclear license and no maintenance signal. While it has low install friction and no known vulnerabilities, the lack of updates means it will not handle new AWS services or ARN formats introduced since 2019. For active projects, consider using the ARN parsing built into boto3 or a maintained alternative.

## Install

pip install arnparse
uv add arnparse
poetry add arnparse

## Installing arnparse

Before you install: Installation is frictionless with no runtime dependencies, but the package is abandoned—last commit was 2019-10-22 and the repository is archived. No maintenance or updates are expected.

License in practice: License status is unclear; no SPDX identifier or raw license text is recorded. Verify the actual license terms in the repository before using in proprietary or copyleft-sensitive contexts.

Quickstart:

pip install arnparse

from arnparse import arnparse

arn = arnparse('arn:aws:s3:::my_bucket/object.png')
print(arn.service, arn.resource)

Verify before relying:

- Whether the unclear license status has been resolved or documented elsewhere in the repository
- Whether the package correctly handles all current AWS ARN formats, given no updates since 2019

## Package facts

- License: not declared (unclear)
- Python support: unspecified
- Install friction: low
- Maintenance: abandoned
- Downloads: 688.2K/month (top 15,000 on PyPI)
- Known vulnerabilities: none known

## Tags

parse AWS ARN, extract ARN components, ARN parser, AWS resource name parsing, ARN to components, Amazon resource name parser, aws, arn-parsing, abandoned

[View on SkillFed](https://skillfed.io/packages/arnparse) · [View on PyPI](https://pypi.org/project/arnparse/)