Red Hat 7.2 (i686), apache 1.3.26, python 2.2.2, mailman 2.1.1 (also happened with 2.1).
After applying the htdig patches, we found that calls to http://.../mailman/htdig/... got an internal server error (HTTP 500). (An example full url: http://tug.org/mailman/htdig/pdftex/2002-July/002843.html.) It turned out that nothing was being written to stdout, that is, in driver.py we have the following block: try: try: sys.stderr = logger sys.stdout = tempstdout main() sys.__stdout__.write(tempstdout.getvalue()) finally: sys.stderr = sys.__stderr__ sys.stdout = sys.__stdout__ except SystemExit: # This is a valid way for the function to exit. pass The sys.__stdout__.write(tempstdout.getvalue()) statement was not getting executed, so apache had no headers to send back, thus the ISE. Instead, the main() call was jumping to the finally block and then the except SystemExit block. Why? Because of the sys.exit(0) at the end of htdig.py. If that is changed to `return', it works. So, apparently sys.exit(0) is throwing a SystemExit exception, which I guess is logical enough. Since not every sys.exit(0) can be changed to return (e.g., the one in error_quit in htdig.py), for now I changed driver.py so that the `except SystemExit' also does the write: except SystemExit: # This is a valid way for the function to exit. sys.__stdout__.write(tempstdout.getvalue()) pass (Well, actually, I changed cgi-wrapper.c to invoke xdriver and changed it in a new script xdriver.py to avoid possibly disturbing all the other mailman cgi scripts.) Of course, there are sys.exit's scattered everywhere throughout all the *.py files, not just in htdig.py. So I feel like I must be missing something. How can it be working for every other script (at least I guess it is), and no one else is seeing the problem? Or does driver.py really need to be changed? Any info appreciated, this has been a frustrating morning. Thanks, [EMAIL PROTECTED] ------------------------------------------------------ Mailman-Users mailing list [EMAIL PROTECTED] http://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://www.python.org/cgi-bin/faqw-mm.py Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ This message was sent to: archive@jab.org Unsubscribe or change your options at http://mail.python.org/mailman/options/mailman-users/archive%40jab.org
