Comparison¶

What this compares: the ways a payment batch reaches pain001, and the Python packages on PyPI that parse SWIFT MT payment messages. Checked on 2026-10-21 against pain001-loader-mt101 at this commit, the pain001 0.0.72 and pain001-loader-xlsx 0.0.72 READMEs, and PyPI’s JSON API.

Inputs to pain001¶

	pain001 (core)	pain001-loader-xlsx	pain001-loader-mt101
Input	CSV, SQLite, JSON, JSONL, Python records; optional Parquet	Excel `.xlsx` / `.xlsm`, first sheet	SWIFT MT101 text, bare or in a `{4:...-}` block
How it plugs in	Built in	`pain001.loaders` entry point	A function: `parse_mt101(text)` returns the records
Records per input	One per row	One per row	One per sequence-B transaction
Fields pain.001 needs and the input lacks	Supplied by the caller	Supplied by the caller	Synthesised and documented (`payment_method`, `service_level_code`, …)
Licence	Apache-2.0 OR MIT	Apache-2.0 OR MIT	Apache-2.0 OR MIT

MT parsers on PyPI¶

No package on PyPI parses MT101 under the names checked: mt101, python-mt101, swift-mt, swiftmt, swift-mt-parser, swift-parser, mt-parser, mt-message, mt-messages, swiftmessage and swift-messages all return 404 from https://pypi.org/pypi/<name>/json. This is a search of likely names, not a proof that none exists.

	pain001-loader-mt101	mt103 1.1.1
Message	MT101 (request for transfer, many transactions)	MT103 (single customer credit transfer)
Output	pain.001 flat records, validated by `pain001`	Parsed MT103 fields
Licence	Apache-2.0 OR MIT	GPL-3.0-or-later

When to pick which¶

Pick this package when the input is MT101 and the output is pain.001. Use the pain001 core’s own loaders when the batch already exists as rows, and pain001-loader-xlsx when it arrives as a spreadsheet. For an MT103 going to pacs.008, the family’s sibling is pacs008-loader-mt103.

Evidence¶

pain001: the “Capabilities at a glance” table of its README (Input | CSV, SQLite, JSON, JSONL, Python records; optional Parquet and plugins).
pain001-loader-xlsx: [project.entry-points."pain001.loaders"] in its pyproject.toml.
pain001-loader-mt101: pain001_loader_mt101/loader.py; pyproject.toml declares no entry point.
mt103: PyPI metadata for 1.1.1 (summary “Parse MT103 messages from the Swift payments network”, licence GPL-3.0-or-later).