-#!/usr/bin/env python
+#!/usr/bin/env python3
import sys
import re
if __name__ == '__main__':
if len(sys.argv) not in [2,3]:
- print 'Usage:',sys.argv[0],'input [output]'
+ print('Usage:',sys.argv[0],'input [output]')
sys.exit(1)
input=sys.argv[1]
try: