Hallöchen! At http://pyvisa.sourceforge.net you can find information about the PyVISA package. It realises Python bindings for the VISA library functions, which enables you to control GPIB, USB, and RS232-serial measurement devices via Python. Yesterday I released version 1.1, which works much better together with older VISA implementations. Moreover, we finally have reports from Linux users. They successfully used PyVISA with Linux + NI/Tektronix GPIB hardware. Tschö, Torsten. F'up to comp.lang.python -- Torsten Bronger, aquisgrana, europa vetus ICQ 264-296-646 (See http://ime.webhop.org for Jabber, MSN, etc.)