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Copyright and Licensing

The essays archived from python.org, their index, and their accompanying example files and mailing-list message retain their original rights and terms. The site's CC BY-NC-SA 4.0 license and the project's MIT package metadata do not relicense this material. Author credits and existing notices are preserved.

Notices on the source pages

What the terms establish

The python.org legal statements give a general website copyright notice with rights reserved. Their third-party-content provision separately grants website users permission to reproduce, distribute, transmit, display, perform, and publish contributed third-party content. These are the source website's terms; they are not a per-essay declaration that every item uses the PSF software license.

The existing Implementing Graphs essay is an explicit exception: its own notice names the Python Software Foundation, gives copyright years 1998, 2000, 2003, and 2019, and specifies the PSF license. That notice is preserved. See the PSF license. No equivalent article-specific license was found in the other imported essays.

Accompanying files

FilesSource and attribution
f.py, g.py Examples accompanying An Optimization Anecdote.
Enum.py, Trace.py, Meta.py, Eiffel.py, Synch.py, Simple.py Examples accompanying Metaclasses in Python 1.5.
meta-vladimir.txt Vladimir Marangozov's August 5, 1998 mailing-list message, including quoted correspondence, from the original text file. Its author and quotation credits are retained.

These nine source files contain no separate copyright or license notice. They have not been assigned a new license here; the absence of a notice is not a public-domain declaration.

The archived copies update HTML formatting, navigation, and links. Copyright and licensing sources were checked on October 26, 2026.


← Python Essays