python-gi-dev depends on python-gi; it should also depend on python3-gi.
I found this bug because it broke the gedit 3.7.4 build:
checking for PYTHON... yes
Traceback (most recent call last):
File "<string>", line 1, in <module>
ImportError: No module named 'gi'
While looking at debian/control.in I have to admit I'm confused by what this is for:
python-gi (>= ${source:Version}),
python-gi (<< ${source:Version}.1~),
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: python-gi-dev (not installed)
ProcVersionSignature: Ubuntu 3.8.0-0.4-generic 3.8.0-rc3
Uname: Linux 3.8.0-0-generic x86_64
ApportVersion: 2.8-0ubuntu2
Architecture: amd64
Date: Sat Jan 19 00:57:28 2013
MarkForUpload: True
SourcePackage: pygobject
UpgradeStatus: No upgrade log present (probably fresh install)
gedit should just build-depend on python3-gi itself if it uses GI with python 3 IMHO, but I don't mind much adding the dependency to python-gi-dev, too. I committed that to Debian SVN, and will upload to Raring, too.