apt-get build-dep python-gnome2-extras && apt-get --build source python-gnome2-extras
Reading package lists... Done
Building dependency tree... Done
The following NEW packages will be installed:
  libgtkhtml2-dev libgtop2-dev libwnck-dev
0 upgraded, 3 newly installed, 0 to remove and 45 not upgraded.
Need to get 496kB of archives.
After unpacking 2343kB of additional disk space will be used.
Do you want to continue [Y/n]? Y
Get:1 http://mirror.averse.net unstable/main libgtkhtml2-dev 2.6.3-1 [254kB]
Get:2 http://mirror.averse.net unstable/main libgtop2-dev 2.10.2-1 [97.3kB]
Get:3 http://mirror.averse.net unstable/main libwnck-dev 2.10.2-1 [145kB]
Fetched 496kB in 8s (56.1kB/s)
Reading package fields... Done
Reading package status... Done
Retrieving bug reports... Done
Selecting previously deselected package libgtkhtml2-dev.
(Reading database ... 257152 files and directories currently installed.)
Unpacking libgtkhtml2-dev (from .../libgtkhtml2-dev_2.6.3-1_i386.deb) ...
Selecting previously deselected package libgtop2-dev.
Unpacking libgtop2-dev (from .../libgtop2-dev_2.10.2-1_i386.deb) ...
Selecting previously deselected package libwnck-dev.
Unpacking libwnck-dev (from .../libwnck-dev_2.10.2-1_i386.deb) ...
Setting up libgtkhtml2-dev (2.6.3-1) ...
Setting up libgtop2-dev (2.10.2-1) ...

Setting up libwnck-dev (2.10.2-1) ...

localepurge: checking system for new locale ...
localepurge: processing locale files ...
removed `/usr/share/locale/de/LC_MESSAGES/baobab.mo'
removed `/usr/share/locale/es/LC_MESSAGES/baobab.mo'
removed `/usr/share/locale/fr/LC_MESSAGES/baobab.mo'
removed `/usr/share/locale/it/LC_MESSAGES/baobab.mo'
localepurge: Disk space freed in /usr/share/locale: 16K
localepurge: processing man pages ...
Reading package lists... Done
Building dependency tree... Done
Need to get 499kB of source archives.
Get:1 http://mentors.debian.net unstable/main gnome-python-extras 2.10.0-4.1 (dsc) [1039B]
Err http://mentors.debian.net unstable/main gnome-python-extras 2.10.0-4.1 (tar)
  404 Not Found
Get:2 http://mentors.debian.net unstable/main gnome-python-extras 2.10.0-4.1 (diff) [3623B]
Fetched 4662B in 9s (481B/s)
Failed to fetch http://mentors.debian.net/debian/pool/main/g/gnome-python-extras/gnome-python-extras_2.10.0.orig.tar.gz  404 Not Found
E: Failed to fetch some archives.