Launchpad Development Wiki

[This wiki is still very much a work in progress. When this notice disappears, that means it's still a work in progress, just not so much in progress that it demands a notice. The notice should go away before Launchpad is open sourced.]

Launchpad is a suite of tools that help people and teams to work together on free software.

This wiki is about the development of Launchpad. If you're just looking for help using Launchpad (including help with its APIs) please visit the help wiki.

But if you're a heavy user of Launchpad who wants to help shape its future -- e.g. an Ubuntu Core Dev, MOTU, or Launchpad developer -- then this is the wiki for you.

Getting Started

• Rocketfuel Setup How to configure Launchpad initially. (Or try this alternate approach.)

• Common Hacking Tips Finding your way around the Launchpad code.

• Coding style guidelines How incoming code should look.

• Submitting a patch and the review process The steps to get a patch into Launchpad.

• Launchpad release calendar for the first part of 2009

• VersionThreeDotO - feature plans and estimates for the mid-2009 major release

Parts of Launchpad

• Database

• Web

• Mail

• Translations - translating programs into multiple languages

• Registry - people, projects and teams

This wiki is new and we're still moving information to it from other places:

• Foundations - everything that holds Launchpad together

• Bugs - the bug tracker

• Code - version control

• Answers - knowledge base

• Blueprint - collaborative design

Process

• Cleaning up our code

• Release Checklist

• Standard merge proposal cover letters

• PQM commit message style guide

• How to handle spurious failures

• A Practical Guide to Launchpad Bug Triage

• Contributor Agreement

Tools

• EmacsTips

• How abentley uses looms

• PQM Rejection Troubleshooting

External documentation

• TAL

• Zope components (Interfaces)

• SQLObject

• DeveloperLibrary recommends some books

Zope tips

ForbiddenAttribute

There are several possible causes:

• The attribute does not exist. (This would normally cause an AttributeError.)

• The attribute is present in the database class, but not in the relevant interface class.
• The attribute is not named in the relevant ZCML file. This does not apply if the entire interface is allowed.

• There is no corresponding interface.

This is not the same as Unauthorized. Unauthorized means that an authorization regime has been properly set up, but the current user is not authorized.