Hi all! Can anybody tell me how to send a C-D to a subprocess opened with os.popen()? Cheers Holger -- Holger Fuessler Praktische Informatik IV Tel: +49 621 181 2605 University of Mannheim Fax: +49 621 181 2601 L15, 16 68131 Mannheim, Germany fuessler at informatik.uni-mannheim.de