"""
example.py DoesSomething to infilename Producing outfilename 

Usage:   example.py infileName outfileName
Example: example.py in.txt     out.txt
"""

def main(argv=None):
  N_ARGS = 2
  import sys
	if argv == None: argv=sys.argv
	args = argv[1:]  #NOTE: args[0] != argv[0] == <full path to example.py>
	if len(args) != N_ARGS or "-h" in args or "--help" in args:
		print __doc__
		sys.exit(2)
	
	print 'we did example.py to ' + str(args[0]) + ' yielding ' + str(args[1])

if __name__ == '__main__':
	sys.exit(main())