suppose i'm calling two system processes, one to unzip, and one to “tail” to get the last line. How can i determine when the first process is done?
Example: subprocess.Popen([r"/sw/bin/gzip","-d","access_log.4.gz"]); last_line=subprocess.Popen([r"/usr/bin/tail","-n 1","access_log.4"], stdout=subprocess.PIPE).communicate()[0] of course, i can try workarounds something like os.system("gzip -d thiss.gz && tail thiss"), but i wish to know if there's non-hack way to determine when a system process is done. Xah [EMAIL PROTECTED] ∑ http://xahlee.org/ -- http://mail.python.org/mailman/listinfo/python-list