The graphical PyCallblocker utility installs two Python files namely the GUI script /opt/pycallblocker/callblocker.py and the daemon file /opt/pycallblocker/callblocker-daemon.py.

Unfortunately, this is not enough to autostart the application when you switch on the phone. For that a script needs to be added to /etc/event.d folder which will do this automatically everytime.

I have written one such script along with a customized callblocker-daemon.py script which will automatically sync with any changes you make to the BlockedCallers.txt file. You can get the files from
this folder on my site.

I tested the re-loading of the numbers file by removing and adding my landline number from the BlockedCallers.txt file,

http://harvestmanontheweb.com/python/n900/

Now, this works beautifully on my n900!

HTH.

--Anand