Prefixdate

Prefixdate (version 0.5.0) is a Python library for parsing and processing date strings with varied levels of precision, such as '2001', '2001-4', or '2001-04-02'. It converts these partial dates into a structured format, enabling validation and re-formatting (e.g., normalizing '2001-4' to '2001-04'). The library is designed for handling ambiguous date prefixes and does not aim for full compliance with ISO 8601 or RFC 3339 standards, specifically excluding date ranges or calendar-week/day-of-year notations. It requires Python >=3.9. The latest version was released on August 4, 2025.