[Mailman-Developers] Mailman 3: Problem with binding REST server to custom address

[Tim Marx]

Hi,
I'm testing the new REST API of Mailman 3 at the moment and installed 
Mailman 3.0.0b3 on Ubuntu Server 12.04 in VirtualBox following the steps 
in docs/START.rst (with virtualenv).
I got Mailman running without errors but I can't change the IP address 
the REST server binds to. I would like to bind the REST server for 
development to the address 0.0.0.0 to access it from outside of the 
VirtualBox with Port Mapping.
I tried with a custom settings file 'mailman.cfg' in my Mailman working 
directory in which I set the property hostname to 0.0.0.0. Now when I 
call 'mailman info' it shows the custom defined hostname in line 
starting with 'REST root url'  but I can't access the API from outside 
the virtual machine and the command 'netstat -lntpu' displays that the 
REST server process was bound to the address 127.0.0.1 and therefore is 
of course only accessible from localhost.
To eliminate any configuration mistakes of my virtual machine or python 
I wrote a simple python script that starts a server with the wsgi 
library and I had no problems to bind this server to 0.0.0.0.
I appreciate any ideas and tips!

Regards, Tim