Doing this as a setting in settings_local.py is insufficient. I would much much much rather it be something users can toggle on and off individually (and maybe don't make it available if pygments isn't installed).
Holy Big O, batman. This is probably OK for now, but I'm thinking of an algorithm that would be roughly linear =)
Add optional syntax highlighting to the diff viewer
Review Request #102 — Created June 26, 2007 and submitted
Added optional syntax highlighting to the diff viewer using the Pygments library. The result is very nice syntax highlighted code, and it still works with interline diffing and everything else. The only real downside is that it may take slightly longer to generate and display the code (though it shouldn't be a significant difference), and that the resulting HTML is bigger (a 60KB HTML page becomes around 100KB). For most setups, however, the download size shouldn't be an important factor. This feature is disabled by default and must be turned on in settings_local.py.
Created and ran several unit tests. Made sure that all my test diffs displayed correctly.