[Bug 1979637] Re: apport_python_hook: FileNotFoundError if cwd was deleted

[Benjamin Drung]

** Also affects: apport (Ubuntu Jammy)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1979637

Title:
  apport_python_hook: FileNotFoundError if cwd was deleted

Status in Apport:
  Fix Released
Status in apport package in Ubuntu:
  Fix Released
Status in apport source package in Jammy:
  New

Bug description:
  Run following shell script:

  ```sh
  echo "raise ValueError()" > /tmp/failure.py
  mkdir /tmp/foo
  cd /tmp/foo/
  rmdir /tmp/foo/
  python3 ../failure.py
  ```

  Python should only show a ValueError, but apport_python_hook.py
  crashes:

  ```
  Traceback (most recent call last):
    File "../failure.py", line 1, in <module>
      raise ValueError()
  ValueError
  Error in sys.excepthook:
  Traceback (most recent call last):
    File "<frozen importlib._bootstrap_external>", line 1372, in _path_importer_cache
  KeyError: '..'

  During handling of the above exception, another exception occurred:

  Traceback (most recent call last):
    File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 55, in apport_excepthook
      import apt_pkg
    File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
    File "<frozen importlib._bootstrap>", line 1002, in _find_and_load_unlocked
    File "<frozen importlib._bootstrap>", line 945, in _find_spec
    File "<frozen importlib._bootstrap_external>", line 1439, in find_spec
    File "<frozen importlib._bootstrap_external>", line 1408, in _get_spec
    File "<frozen importlib._bootstrap_external>", line 1374, in _path_importer_cache
    File "<frozen importlib._bootstrap_external>", line 1350, in _path_hooks
    File "<frozen importlib._bootstrap_external>", line 1632, in path_hook_for_FileFinder
    File "<frozen importlib._bootstrap_external>", line 1505, in __init__
  FileNotFoundError: [Errno 2] No such file or directory

  Original exception was:
  Traceback (most recent call last):
    File "../failure.py", line 1, in <module>
      raise ValueError()
  ValueError
  ```

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