I have updated the Firebird page in the python wiki 

http://wiki.python.org/moin/Firebird

Please fix any mistakes 

this :

• Python driver binary distribution available for : Windows ,Fedora , Debian, Ubuntu (in official repository) , but you can to compile for other platforms : hereis the Howto install it on ubuntu from source.

is not accurate

it talks about kinterbasdb it seems

for your information and for what I know :

kinterbasdb is packaged in official repositories for Fedora, EPEL (RHEL and Centos), Mageia, Debian, Ubuntu

fdb  is packaged is packaged in official repositories for Mageia (Fedora will come as soon as as can)

pyfirebirdsql is packaged in official repositories for Mageia (Fedora will come as soon as as can)