Can you point me to a large Python open-source project?

Question

I would like to see how a large (>40 developers) project done with Python looks like:

• how the code looks like
• what folder structure they use
• what tools they use
• how they set up the collaboration environment
• what kind of documentation they provide

It doesn't matter what type of software it is (server, client, application, web, ...) but I would prefer something mature (version 1.0 already done)

Answer 1

The Django web framework.

Also, Twisted Matrix.

I am not sure about the exact number of developers, though.

Answer 2

• Roundup - Issue Tracker
• Twisted - Network Programming Framework
• Zenoss - Network Monitor
• Mercurial - SCM Tool

Answer 3

Is pinax big enough? or ella?

I'm not sure of the developer count, but they are big and have a fair number of forks.

Django would probably qualify.

Answer 4

Trac - which coincidentally is also usable for the collaboration environment part of your question.

Answer 5

Pylons.

Even it is 0.9.8, it is quite mature

Answer 6

There are about 40 developers working on the language itself. You can take a look at the repository or download the source [ftp] to see style, organization, &c.

Here are some other large Python projects (lines-of-code large).

Answer 7

The Plone CMS and the Zope application server on which Plone runs.

Answer 8

Chandler is a really huge one that had problems because of its size and the developers working on it, so you can learn from their failures. There's a book written about it too.

Wingware Python IDE is a huge project, unfortunately it's closed source. But I think it's still interesting to see what a large desktop application is like in Python.

Answer 9

Perhaps more low-level than you're looking for but the NumPy and SciPy projects are very mature, open source, numerical and scientific programming libraries. Although the API is Python, much of the low-level work is done in C or Fortran.

The IPython project is a pure-python project that is also quite mature.

Answer 10

PyQt4 is a large project.

Here is a list with the most popular python projects.