Zope Public License
Описание лицензии
Эта лицензия стремится обеспечить свободное использование Zope и его исходных кодов требуя выполнения несколько условий для использования.
Текущая версия 2.1. Она обеспечивает возможность использования Zope и библиотек сторонних разработчиков, без необходимости передачи всех прав. Так же текущая версия является совместимой с GPL.
Приложения и дополнения для Zope желательно выпускать так же на условиях данной лицензии. Проблемм с этим не должно быть, так как можно выпускать один продукт сразу под несколькими типами лицензий, например ZPL и GPL.
Все возникшие идеи по изменению данной лицензии можно присылать на адрес: Legal mail.
Данная лицензия, по заверениям разработчиков, будет в дальнейшем оставаться поддерживающей свободное программное обеспечение.
История
2.1 Reusable ZPL separates copyright information into an accompanying copyright file, COPYRIGHT.txt 2.0 New license, now GPL compatible 1.1 Changed from Digital Creations to Zope Corporation, removed previous clause asking for (but not requiring) attribution, changed Open Source (tm) to open source until trademarking issues are resolved, changed links from "www.zope.org" to "www.zope.com". 1.0 Official release. 0.9.7 Dropped the requirement for "Attribution". Replaced the requirement with a "plea", but made it voluntary. 0.9.6 Clarified the "Attribution" clause. It stated that both a "button" and a "credits page" were required. The updated wording clearly states that the "button" links to the "credits page". This "credits page" resides on Digital Creations' web site by default, but may be copied to the attributing web site. 0.9.5 Added a line to clause #3 regarding the avoidance of attribution. In clause #4, dropped the requirement to attribute in technical papers. Also in clause #4, added that intact distributions need not have an attribution in any advertising. In clause #6, added the word "Modified", and added a restatement that intact distributions don't require attribution. In clause #7, added a clarification regarding patches and modifications. Added two sentences to the attribution section reiterating the clarification from clause #3 regarding sites that have valid reasons not to attribute the use of Zope in the required manner. 0.9.4 Corrected a typo in first paragraph and labeled the disclaimer section. 0.9.3 The stipulation about being on every page with a copyright was ill-conceived and has disappeared. 0.9.2 Received a complaint about clause 7. I changed it to better reflect our goal, which is to ensure patch integrity and minimize the forked version problem. I'm open to suggestions on this.
