name of this python program

[Gandalf]

>
>
>hi there
>
>when i start a python script with 
>        python myprog.py 
>how can i find out the name of my script ("myprog.py") inside the script
>itself. looking for something like args[0]...
>
>cheers, leo
>  
>
import sys
print sys.argv[0]

However, it can be wrong if you run it that way ('python myprog.py'). It 
works when you run it this way: 'myprog.py'.

Best,

G