bpython: crash after a few seconds related to apparmor

[Simon Chopin]

Something goes wrong in the import completion code, as it tries to open an apparmor-related sysfs file. The crash appears a few seconds after launching bpython. Seems fixed upstream.

LANG=C bpython
bpython version 0.21 on top of Python 3.9.6 /usr/bin/python3
>>>
Traceback (most recent call last):
  File "/usr/bin/bpython", line 33, in <module>
    sys.exit(load_entry_point('bpython==0.21', 'console_scripts', 'bpython')())
  File "/usr/lib/python3/dist-packages/bpython/curtsies.py", line 201, in main
    exit_value = repl.mainloop(True, paste)
  File "/usr/lib/python3/dist-packages/bpython/curtsies.py", line 115, in mainloop
    while self.module_gatherer.find_coroutine():
  File "/usr/lib/python3/dist-packages/bpython/importcompletion.py", line 226, in find_coroutine
    next(self.find_iterator)
  File "/usr/lib/python3/dist-packages/bpython/importcompletion.py", line 217, in find_all_modules
    for module in self.find_modules(p):
  File "/usr/lib/python3/dist-packages/bpython/importcompletion.py", line 202, in find_modules
    for subname in self.find_modules(path_real):
  File "/usr/lib/python3/dist-packages/bpython/importcompletion.py", line 202, in find_modules
    for subname in self.find_modules(path_real):
  File "/usr/lib/python3/dist-packages/bpython/importcompletion.py", line 202, in find_modules
    for subname in self.find_modules(path_real):
  [Previous line repeated 12 more times]
  File "/usr/lib/python3/dist-packages/bpython/importcompletion.py", line 199, in find_modules
    stat = path_real.stat()
  File "/usr/lib/python3.9/pathlib.py", line 1222, in stat
    return self._accessor.stat(self)
FileNotFoundError: [Errno 2] No such file or directory: '/sys/kernel/security/apparmor/apparmorfs:[15545]'

[Simon Chopin (schopin)]

Fixed by backporting upstream patch. Uploaded to https://launchpad.net/~schopin/+archive/ubuntu/test-ppa/+sourcepub/12668725/+listing-archive-extra as well.

[Brian Murray (brian-murray)]

I sponsored this after running update-maintainer.

 $ dput bpython_0.21-3ubuntu1_source.changes
Trying to upload package to ubuntu
Checking signature on .changes
gpg: /tmp/pkgs/impish/bpython_0.21-3ubuntu1_source.changes: Valid signature from 1E918B66765B3E31
Checking signature on .dsc
gpg: /tmp/pkgs/impish/bpython_0.21-3ubuntu1.dsc: Valid signature from 1E918B66765B3E31
Uploading to ubuntu (via ftp to upload.ubuntu.com):
  Uploading bpython_0.21-3ubuntu1.dsc: done.
  Uploading bpython_0.21-3ubuntu1.debian.tar.xz: done.
  Uploading bpython_0.21-3ubuntu1_source.buildinfo: done.
  Uploading bpython_0.21-3ubuntu1_source.changes: done.
Successfully uploaded packages.

[Launchpad Janitor (janitor)]

This bug was fixed in the package bpython - 0.21-3ubuntu1

---------------
bpython (0.21-3ubuntu1) impish; urgency=medium

  * d/p/0001-Handle-OSError-from-stat.patch: cherry-picked from upstream
    to fix crash. LP: #1941709

 -- Simon Chopin <email address hidden> Thu, 26 Aug 2021 09:57:00 +0200