[Bug 1899195] Re: /usr/share/apport/apport:AttributeError:/usr/share/apport/apport at 451:parse_arguments:print_usage:_print_message

[Launchpad Bug Tracker]

This bug was fixed in the package apport - 2.20.11-0ubuntu50

---------------
apport (2.20.11-0ubuntu50) groovy; urgency=medium

  * etc/apport/crashdb.conf: Disable Launchpad crash reports for 20.10
    release.
  * data/apport: In the event that the crashing executable does not exist on
    disk any more the path name of the executable (passed by core) is appended
    with '(deleted)' because apport is currently using sys.argv for argument
    parsing there end up being too many arguments and apport crashes. This is
    fixed by adding handling for six arguments. (LP: #1899195)

 -- Brian Murray <brian at ubuntu.com>  Mon, 12 Oct 2020 13:44:05 -0700

** Changed in: apport (Ubuntu)
       Status: In Progress => Fix Released

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Title:
  /usr/share/apport/apport:AttributeError:/usr/share/apport/apport at 451:parse_arguments:print_usage:_print_message

Status in apport package in Ubuntu:
  Fix Released

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

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