How to upgrade to 2.4.1 on Mac OS X tiger

[dario]

Hi Dennis, unfortunately I can only use SER class and not 'serial'
class.
This because my emebedded phyton version don't show any import
possibility to this class. It run on the Trizium modem.
Serial I attached above, was coming from the 'simulator' code installed
on my PC.
How I can simulate your code without serial class?  It is better with
SER.read()  than SER.readbyte() because I have to read a string.

Thanks.