A quick followup: about the 'threads' issue, this seems to be a bug related to ipython (see https://bugs.launchpad.net/bugs/777420 and https://github.com/ipython/ipython/issues/185).
This is fixed by upgrading to ipython 0.10.2, which is available from ubuntu oneiric (no additional dependency compared to natty): wget http://launchpadlibrarian.net/70857487/ipython_0.10.2-1_all.deb sudo dpkg -i ipython_0.10.2-1_all.deb After installing this version, I can use ipython -pylab with the GTKAgg backend working, and I also get a working console&GUI using mlab with "ipython -whread". Hopefully this version of ipython can be pushed to natty as well. => go to https://bugs.launchpad.net/bugs/777420 if you wish to follow up on this. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/776078 Title: Can no longer use mlab -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs