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• Metaclasses in Python 1.5

  ...ides Implement class methods (e.g. if the first argument is not named 'self') Implement that each instance is initialized with copies of all class variables Implement a different way to store instance variables (e.g. in a list kept outside the the instance but indexed by the instance's id()) Automatically wrap or trap all or certain methods for tracing for precondition and postcondition checking for synchronized methods for automatic value caching When an ...

• Python 2.0

  ...idate 1 (since beta 2)? What is release candidate 1? We believe that release candidate 1 will fix all known bugs that we intend to fix for the 2.0 final release. This release should be a bit more stable than the previous betas. We would like to see even more widespread testing before the final release, so we are producing this release candidate. The final release will be exactly the same unless any show-stopping (or brown bag) bugs are found by testers of the release candidate. ...

• PSF Trademark Frequently Asked Questions (FAQ)

  ...idering to use the term in the conference name, first, please consult the PSF PyCon Trademark Usage Policy at https://www.python.org/psf/trademarks/pycon/. Next, think about whether your event is consistent with the branding goal of the PyCon name. PyCon events are generally characterized as larger conferences, targeted at a worldwide, national or regional audience. You can visit https://pycon.org/ to get a better idea of the scale and focus of different PyCons around the world. We require confe...

• Python documentation by version

  Python documentation by version Some previous versions of the documentation remain available online. Use the list below to select a version to view. For unreleased (in development) documentation, see In development versions. Python 3.14.0, documentation released on 7 October 2025. Python 3.13.9, documentation released on 14 October 2025. Python 3.13.8, documentation released on 7 October 2025. Python 3.13.7, documentation released on 14 August 2025. Python 3.13.6, documentation released on 6...

• PSF Board Resolutions

  ...idual annual expense contracts on behalf of the PSF up to $100,000 per year and individual annual revenue agreements up to $250,000 per year. Approved, 9-0-1, 2022-06-07 RESOLVED, that the Director of Resource Development of the PSF is authorized to sign individual annual fundraising expense contracts up to $50,000 per year and individual annual revenue agreements up to $150,000 per year. Approved, 10-0-0, 2022-06-07 RESOLVED, that the Director of Events of the PSF is authorized to sign indivi...

Python language documentation

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