I have solved my problem by editing the download script to use wget in a subprocess instead of urllib.urlretrieve. It's a bit of a hack, and maybe it's not a viable long-term solution, but now everything works perfectly for me. I was able to install both flash and the MS core fonts. I'm attaching a diff showing what I did.
** Patch added: "Bypass urllib.urlretrieve; use wget instead" https://bugs.launchpad.net/ubuntu/+source/update-notifier/+bug/983559/+attachment/3168854/+files/downloader.diff -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/983559 Title: package-data-downloader utility does not honor apt http proxy settings To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-notifier/+bug/983559/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
