How to get progress in python script.

[Rolando Cañer Roblejo]

Hi all,

Please, I need you suggest me a way to get statistics about a progress 
of my python script. My python script could take a lot of time 
processing a file, so I need a way that an external program check the 
progress of the script. My first idea was that the python script write a 
temp file showing the progress and the external program can check that 
file, but I think might happen file read/write locking issues.

Thanks.