Is inifinite loop not a good practice?

[Alvin A. Delagon]

Greetings,

I have to write a python script that would continously monitor and 
process a queue database. Once the script sees an unprocessed record it 
will create a thread to process it otherwise it will do nothing. I've 
been planning to do an infinite loop within the script to do this but 
I've been hearing comments that infinite loop is a bad programming 
practice. I'm opted to run the script via crontab but I consider it as 
my last resort. Do you have any suggestions on the design? Thanks in 
advance!