[Bug 1851806] Re: 'module' object has no attribute 'O_PATH'

[Albert Pool]

Simply removing O_PATH from the line in question leads to:

Traceback (most recent call last):
  File "/usr/share/apport/apport-gtk", line 597, in <module>
    app.run_argv()
  File "/usr/lib/python2.7/dist-packages/apport/ui.py", line 661, in run_argv
    return self.run_update_report()
  File "/usr/lib/python2.7/dist-packages/apport/ui.py", line 559, in run_update_report
    self.report.add_proc_environ()
  File "/usr/lib/python2.7/dist-packages/apport/report.py", line 592, in add_proc_environ
    env = _read_file('environ', dir_fd=proc_pid_fd).replace('\n', '\\n')
  File "/usr/lib/python2.7/dist-packages/apport/report.py", line 73, in _read_file
    with open(path, 'rb', opener=lambda path, mode: os.open(path, mode, dir_fd=dir_fd)) as fd:
TypeError: 'opener' is an invalid keyword argument for this function

(Linux Mint 18.2, python-apport 2.20.1-0ubuntu2.21)

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https://bugs.launchpad.net/bugs/1851806

Title:
  'module' object has no attribute 'O_PATH'

Status in apport package in Ubuntu:
  Confirmed

Bug description:
  I encountered the following exception in python-apport while
  encountering an exception `bup` which uses `python-apport`. I'm sure
  that the exception lies in the responsibility of `python-apport` (the
  `AttributeError` stacktrace is relevant):

  ```
  Traceback (most recent call last):
    File "/usr/lib/bup/cmd/bup-index", line 269, in <module>
      update_index(rp, excluded_paths, exclude_rxs, xdev_exceptions=xexcept)
    File "/usr/lib/bup/cmd/bup-index", line 191, in update_index
      mi.close()
    File "/usr/lib/bup/bup/index.py", line 528, in close
      os.rename(self.tmpname, self.filename)
  OSError: [Errno 13] Permission denied
  Error in sys.excepthook:
  Traceback (most recent call last):
    File "/usr/lib/bup/bup/helpers.py", line 916, in newhook
      return oldhook(exctype, value, traceback)
    File "/usr/lib/python2.7/dist-packages/apport_python_hook.py", line 109, in apport_excepthook
      pr.add_proc_info(extraenv=['PYTHONPATH', 'PYTHONHOME'])
    File "/usr/lib/python2.7/dist-packages/apport/report.py", line 544, in add_proc_info
      proc_pid_fd = os.open('/proc/%s' % pid, os.O_RDONLY | os.O_PATH | os.O_DIRECTORY)
  AttributeError: 'module' object has no attribute 'O_PATH'

  Original exception was:
  Traceback (most recent call last):
    File "/usr/lib/bup/cmd/bup-index", line 269, in <module>
      update_index(rp, excluded_paths, exclude_rxs, xdev_exceptions=xexcept)
    File "/usr/lib/bup/cmd/bup-index", line 191, in update_index
      mi.close()
    File "/usr/lib/bup/bup/index.py", line 528, in close
      os.rename(self.tmpname, self.filename)
  OSError: [Errno 13] Permission denied
  ```

  ProblemType: Bug
  DistroRelease: Ubuntu 19.10
  Package: python-apport 2.20.11-0ubuntu8.2
  ProcVersionSignature: Ubuntu 5.3.0-19.20-generic 5.3.1
  Uname: Linux 5.3.0-19-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportLog: Error: [Errno 13] Keine Berechtigung: '/var/log/apport.log'
  ApportVersion: 2.20.11-0ubuntu8.2
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Nov  8 10:43:02 2019
  PackageArchitecture: all
  SourcePackage: apport
  UpgradeStatus: Upgraded to eoan on 2019-10-25 (13 days ago)

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