Yes Dieter. Seems this works but there is still a problem your function returns only 9 digits insted of 16. original data data converted ============== =========== ec00000002000000 ec0002000 ec00000002000400 ec0002040 ec00000002000500 ec0002050 ec00000002000600 ec0002060 ec00000002000700 ec0002070 ec00000002000b00 ec00020b0 What can I do to change this behavior ? Thank you. Dieter Maurer wrote:

Jose Soares writes:

...

OID DISTRETTO ================ ========= a200000002000100 I10500

but Zope display it as:

OID DISTRETTO ------------------------- ¢
I10500

Apparently, your database does not send the OID as a hexadecimal string but as a binary string.

You could convert the binary string into a hexadecimal string in an External Method:

from string import join

def convertBinaryToHexString(binstring): return join(map(lambda c: '%x' % ord(c), binstring), '')

Dieter