Derivative works made available to others must summarise changes
Catalog row in Vendor License Rules · Cited
- Kind
- Restriction
- Statement
- PSF License Agreement Version 2, clause 3: a Licensee that prepares a derivative work based on or incorporating Python, and makes it available to others, agrees to include in that work a brief summary of the changes made to Python. The clause requires a change summary, not publication of the modified source. (page undated; as published on 2026-09-27)
- Applies when
- Distributing a modified CPython (patched interpreter, altered standard library) or a work that incorporates part of Python.
- Applies to
- Derivative works of Python (CPython).