uhm, someone did not read carefully ^_^ .... I'll post here the relevant post from the thread before, I think the user in question (pcastellazzi) nailed it.
The python uuid library use libuuid from e2fsprogs (at least in > ubuntu). This particular uuid library spanws a daemon called uuidd to > help with concurrent uuid generation. As far as i know the only way to > disable this behaviour is to compile libuuid with --disable-uuidd > option. > > When you run ./manage.py runserver the first time, libuuid launch > uuidd with fork(2). This cause uuidd to inherit all open file > descriptors from the parent process. In this case the parent process > is the python interpreter running manage.py and the open file > descriptors are among other things the open tcp connections. After > that manage.py will (probably) hang whiel serving a request, and if it > is restarted by hand or by changing a file in your application it will > keep saying port already in use until you kill uuidd. > > The most simple workaround is to launch uuidd without parameters. This > will make the daemon start without open tcp ports and the library will > not try to run uuidd by it self, then do your normal django > development stuff and when you are done you can kill uuidd with uuidd - --

