[galaxy-dev] How to install tool-shed behind proxy with authentication ?

dear Galaxians, my server is behind a proxy with user authentication. Wget and hg work fine however unfortunately when I try to install from the tool shed I get error since the system is using urllib2 that is known not to be compatible with proxy with authentication. How should one locally install tool-sheds ? Is it possible with hg or with wget ? Looking forward your advice. Thankyou