Simple looping question...

[Vincent A. Primavera]

Hello,
	In a piece of code similar to this I am trying to read all the lines from a 
file but no more.  How can I set the "range" of this loop to stop when it 
reaches the end of the file?
              
              for i in range(???):
              a = fil1.readline()
              print a

	Thank You,
	Vincent A. Primavera