How do I read multipli bytes from file?

[Jens Arnfelt]

Hi There !

I have been working on an python program that reads Call Data Records from a
file!

Ex. the following values in hex (a telephone number encoded in BCD(Binary
Coded Dicimal) :

45 26 10 05 01 1f ff ff ff ff

The length of the fiels is 10 bytes.
I need to convert this into somthing readable in a single string. The result
should be!

'45261005011fffffff'

I've tryed with the string.unpack() but its return a list of bytes, not a
string.

Any help would apriciated