Hi All, Can I tell me anyone about the following code: >>> import string >>> lst =3D3D ['ONE', 'TWO', 'THREE'] >>> newlst =3D3D [x.lower() for x in lst] File "<stdin>", line 1 newlst =3D3D [x.lower() for x in lst] I am using python1.5 on Red Hat Linux 7.1. Does the facility "[x.lower() for x in lst]" not = available in python1.5 ? Thanks in advance! Abhiram =