LICENSEWARE
Python Software Foundation Rule

PSF License Agreement and copyright notice must be retained

Catalog row in Vendor License Rules · Cited

Kind
Restriction
Statement
PSF License Agreement Version 2, clause 2: the grant is conditional on PSF's License Agreement and PSF's copyright notice ("Copyright (c) 2001 Python Software Foundation; All Rights Reserved") being retained in Python alone or in any derivative version the Licensee prepares. Redistributed copies, embedded runtimes and modified builds must carry the licence text and notice. (page undated; as published on 2026-09-27)
Applies when
Redistributing CPython in source or binary form, including bundling or embedding it in another product.
Applies to
Python (CPython) and derivative versions.
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