GoKawiilNew open-source Python library Edison parses EDIFACT messages as syntax trees
Edison is a Python library that models EDIFACT messages as a hierarchical syntax tree rather than a flat list of segments, allowing groups of segments to be defined as conditional, mandatory, or repeatable. Developers define the tree once in Python, then use it to parse, validate, or pretty-print messages, with the tree internally converted into a state machine of segment transitions. The library requires Python 3.12 or newer and is installable via pip as edison-parser.
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EDIFACT remains widely used in logistics, shipping, and retail EDI systems, where existing tooling often treats messages as flat segment lists, making validation and parsing more error-prone. By modeling the format as a true syntax tree with conditional and repeatable groups, Edison could simplify building robust parsers for specific message versions and schemas. Support for exporting transition graphs and handling edge cases like EBCDIC control characters suggests the project targets developers dealing with legacy or strict industry EDI standards.
- Edison is a Python library for parsing EDIFACT messages using a syntax-tree model instead of flat segment lists.
- It supports conditional, mandatory, and repeatable segment groups, callbacks, and schema selection by message version.
- Requires Python 3.12+ and is installed via 'pip install edison-parser'.
Source: github.com, 2026-10-22
Published there as: “Parsing EDIFACT in Python with syntax trees”
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