I don't get a "NotImplementedError" as in bug #558343, I simply get 'Connection timed out' because it's trying to contact 91.189.89.226 without using the proxy.
I tried 'bzr -Dhttp branch lp:mailman' after discovering that option in the ticket you linked, but the output is the same.
They do (with hostname, for privacy): hostname: 3128/ hostname: 3128/ hostname: 3128/ hostname: 3128/
$ env |grep -i proxy
http_proxy=http://
HTTPS_PROXY=http://
https_proxy=http://
HTTP_PROXY=http://
I don't get a "NotImplemented Error" as in bug #558343, I simply get 'Connection timed out' because it's trying to contact 91.189.89.226 without using the proxy.
I tried 'bzr -Dhttp branch lp:mailman' after discovering that option in the ticket you linked, but the output is the same.