Raster failure with python

Discussion created by holm.seifert on Sep 8, 2010
Hallo guys,

i have a question concerning a python script and raster analysis.
I have created a python script for converting ascii to raster and further analysis. (adding fields and calculating).
But the problem are the floating points, because the data describes climate data.
When i run the script first i works very well.
but if i run the script for the second or third time, it abrupt in the middle of the process.
(gernal function failure).
Have anyone an idea for a solution?