Installation Issues on Debian Wheezy

I'm trying to install graph-tool on Debian Wheezy, following the instructions
at http://graph-tool.skewed.de/download#debian - unfortunately, I have some
problems, depending on what value I use for DISTRIBUTION in my
/etc/apt/sources.list file:

If I use 'jessie' or 'sid', then (after running 'apt-get update'), when I
run 'apt-get install python-graph-tool', I get an error about unsatisfied
dependencies (various libboost-... packages, libcgal10, libgomp1,
libstdc++6). I'm not sure what the exact error message is in english, since
my server language is set to german. If necessary, I can try to provide more
details.

If I use 'testing' (this was in the instructions until a few days ago),
running 'apt-get update' gives me some 404s for:
    http://downloads.skewed.de testing/main Sources
    http://downloads.skewed.de testing/main i386 Packages

If I use 'wheezy' (on a whim - I haven't seen this in the instructions),
then running 'apt-get update' works, and ostensibly, so does running
'apt-get install python-graph-tool', but the version it installs is an old
one which cannot load graphs in the gt format (which I need).

Am I doing something wrong? Is it possible to install a precompiled package
of a recent version on Debian Wheezy? I'm not very familiar with Debian
package management. If any more details are required, please let me know.

On an unrelated note: thanks for graph-tool! It is well-crafted and has
brought me much joy :slight_smile:

If I use 'wheezy' (on a whim - I haven't seen this in the instructions),
then running 'apt-get update' works, and ostensibly, so does running
'apt-get install python-graph-tool', but the version it installs is an old
one which cannot load graphs in the gt format (which I need).

Wheezy is no longer supported, unfortunately. The Boost version
available there is too old, and incompatible with graph-tool, so I
cannot compile a package for it.

I think testing (jessie) is about to become stable any moment now™, so
wheezy will become obsolete.

On an unrelated note: thanks for graph-tool! It is well-crafted and has
brought me much joy :slight_smile:

You're welcome!

Best,
Tiago