/usr/share/apport/apport:AttributeError:/usr/share/apport/apport@429:parse_arguments:print_usage:_print_message

[errors.ubuntu.com bug bridge]

The Ubuntu Error Tracker has been receiving reports about a problem regarding apport. This problem was most recently seen with package version 2.20.11-0ubuntu18, the problem page at https://errors.ubuntu.com/problem/4450779f25a7f4e3c3713198defeefd98859f1a4 contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
If you do not have access to the Ubuntu Error Tracker and are a software developer, you can request it at http://forms.canonical.com/reports/.

[Brian Murray (brian-murray)]

Here is the Traceback:

Traceback (most recent call last):
  File "/usr/share/apport/apport", line 429, in <module>
    options = parse_arguments()
  File "/usr/share/apport/apport", line 374, in parse_arguments
    parser.print_usage()
  File "/usr/lib/python3.7/argparse.py", line 2484, in print_usage
    self._print_message(self.format_usage(), file)
  File "/usr/lib/python3.7/argparse.py", line 2495, in _print_message
    file.write(message)
AttributeError: 'NoneType' object has no attribute 'write'

[Michael Hudson-Doyle (mwhudson)]

This seems to occur when an executable that has been deleted crashes -- the apport hook is called with the executable name set to "/path/to/exe (deleted)" and somehow this is being split on spaces and the extra (deleted) argument causes this crash. But simple attempts at reproducing this scenario failed.