how to calculate latitude and longitude of points using python

System ArcGIS 9.3
Python 2.5

Hello,

I have about 100 point shapefiles in a folder. (projection WGS 1984)
I would like to get the point latitudes and longitudes.
I used to use XTool Pro but it did not go well for version 9.1

Please kindly advise any python code to calculate the latitudes and longitudes.
Thank you