While you won't get a Traceback with the following test case you will see apport usage printed:
$ PYTHONPATH=/home/bdmurray/source-trees/apport/trunk data/apport '8219' '11' '0' '1' '8219' '!usr!share!spotify!spotify' '(deleted)' usage: apport [-h] [-p PID] [-s SIGNAL_NUMBER] [-c CORE_ULIMIT] [-d DUMP_MODE] [-P [GLOBAL_PID]] With the fixed version of apport you'll see no such usage message. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apport in Ubuntu. https://bugs.launchpad.net/bugs/1899195 Title: /usr/share/apport/apport:AttributeError:/usr/share/apport/apport@451:parse_arguments:print_usage:_print_message Status in apport package in Ubuntu: In Progress Bug description: The Ubuntu Error Tracker has been receiving reports about a problem regarding apport. This problem was most recently seen with package version 2.20.11-0ubuntu27.10, the problem page at https://errors.ubuntu.com/problem/290470c9cf5f278596966c386aac31e70a49988e contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports. Traceback (most recent call last): File "/usr/share/apport/apport", line 451, in <module> options = parse_arguments() File "/usr/share/apport/apport", line 396, in parse_arguments parser.print_usage() File "/usr/lib/python3.6/argparse.py", line 2370, in print_usage self._print_message(self.format_usage(), file) File "/usr/lib/python3.6/argparse.py", line 2381, in _print_message file.write(message) AttributeError: 'NoneType' object has no attribute 'write' After working on https://bugs.launchpad.net/apport/+bug/1732962, the error tracker started throwing the error above. it appears that print_usage is called and throwing an error because in this context (called with core_pattern) apport doesn't have an stdout or stderr. after looking at traces it seems the kernel is adding 'deleted' to the name of the process which cause argument parsing to fail. The fix below from bdmurray seems to fix it. https://paste.ubuntu.com/p/pVKNP9kWP4/ There is report of this issue in Focal, Bionic and xenial To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1899195/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
