Comment 8 for bug 244448

Ok, so a possible solution will be to allow specifying http[s]_proxy in locations.conf/branch.conf and leave credentials in authentication.conf (or not, user choice) and gives these definitions priority over environment variables (not trivial but doable).

Your setup is rather unusual since you seem to encounter a lot of problems to go through your proxy. Generally we avoid out-smarting the network connection itself to keep both usage and code simple.

What do you call 'local authorization proxy' ? What software do you use for that ?

By PyTTY did you mean PuTTY ? AIUI, this is another case where you have to work around your proxy limitations (or bzr lack of support for it).

Will adding support for NTLM to urllib provide a alternative solution ; i.e. will you still need to use two different proxies or will that be enough to just use your proxy (are have you already encounter content-filtering problems when accessing bzr remote branches) ?