When I run: #!/usr/bin/python lines = list() while 1: try: inLine = raw_input() lines = lines.append(inLine) except EOFError: break
I get: Traceback (most recent call last): File "./foobar.py", line 7, in <module> lines = lines.append(inLine) AttributeError: 'NoneType' object has no attribute 'append' -- http://mail.python.org/mailman/listinfo/python-list