| \author{ | |
| Guido van Rossum \\ | |
| Corporation for National Research Initiatives (CNRI) \\ | |
| 1895 Preston White Drive, Reston, Va 20191, USA \\ | |
| E-mail: {\tt guido@CNRI.Reston.Va.US}, {\tt guido@python.org} | |
| } | |
| \date{December 31, 1997 \\ Release 1.5} % XXX update before release! |