Haibao Tang wrote: > Is it possible to substitue all '1.1' to some value else without using > re.
You could try: import sys values = sys.stdin.readline().split() while values: results = [] for value in values: if value != '1.1': results.append(value) else: results.append('something else') print '\t'.join(results) values = sys.stdin.readline().split() -- http://mail.python.org/mailman/listinfo/python-list