how to catch system errors in python

[Manpreet Singh Khurana]

Hi,
I am using paramiko 1.5.3 with python 2.4 and pycrypto 1.9
I need to know if it is possible to catch sysytem level error, like
"disk space full" or "cpu usage indication" etc.

Any help would be appriciated.

Regards,

MSK