"ModuleNotFoundError: 'apt_pkg'라는 모듈이 없습니다."가 다양한 명령에 나타납니다.

설치되지 않은 패키지를 실행하려고 할 때 등 다양한 상황에서 다음 오류가 발생합니다.

   $ tldr
    Traceback (most recent call last):
      File "/usr/lib/command-not-found", line 28, in <module>
        from CommandNotFound import CommandNotFound
      File "/usr/lib/python3/dist-packages/CommandNotFound/CommandNotFound.py", line 19, in <module>
        from CommandNotFound.db.db import SqliteDatabase
      File "/usr/lib/python3/dist-packages/CommandNotFound/db/db.py", line 5, in <module>

    import apt_pkg
ModuleNotFoundError: No module named 'apt_pkg'
Error in sys.excepthook:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 63, in apport_excepthook
    from apport.fileutils import likely_packaged, get_recent_crashes
  File "/usr/lib/python3/dist-packages/apport/__init__.py", line 5, in <module>
    from apport.report import Report
  File "/usr/lib/python3/dist-packages/apport/report.py", line 30, in <module>
    import apport.fileutils
  File "/usr/lib/python3/dist-packages/apport/fileutils.py", line 23, in <module>
    from apport.packaging_impl import impl as packaging
  File "/usr/lib/python3/dist-packages/apport/packaging_impl.py", line 24, in <module>
    import apt
  File "/usr/lib/python3/dist-packages/apt/__init__.py", line 23, in <module>
    import apt_pkg
ModuleNotFoundError: No module named 'apt_pkg'

Original exception was:
Traceback (most recent call last):
  File "/usr/lib/command-not-found", line 28, in <module>
    from CommandNotFound import CommandNotFound
  File "/usr/lib/python3/dist-packages/CommandNotFound/CommandNotFound.py", line 19, in <module>
    from CommandNotFound.db.db import SqliteDatabase
  File "/usr/lib/python3/dist-packages/CommandNotFound/db/db.py", line 5, in <module>
    import apt_pkg
ModuleNotFoundError: No module named 'apt_pkg'

나는 해결책을 시도했다https://askubuntu.com/questions/1190328/modulenotfounderror-no-module-named-apt-pkg그러나 이것은 도움이 되지 않습니다. 또한 다른 버전의 Python을 설치 및 재설치하고 업데이트 대안 링크를 변경해 보았습니다. 운영 체제에서 사용하는 Python 구성이 어떻게든 손상된 것 같습니다.

몇 가지 일반 정보:

$ cat /etc/os-release
NAME="KDE neon"
VERSION="5.18"
ID=neon
ID_LIKE="ubuntu debian"
PRETTY_NAME="KDE neon User Edition 5.18"
VARIANT="User Edition"
VERSION_ID="18.04"
HOME_URL="http://neon.kde.org/"
SUPPORT_URL="http://neon.kde.org/"
BUG_REPORT_URL="http://bugs.kde.org/"
LOGO=start-here-kde-neon
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=bionic
UBUNTU_CODENAME=bionic

파이썬2:

$ update-alternative s --config python
    There is only one alternative in link group python (providing /usr/bin/python): /usr/bin/python2.7
    Nothing to configure.

$ python --version
Python 2.7.17

아나콘다 3:

$ update-alternatives --config python3
There is only one alternative in link group python3 (providing /usr/bin/python3): /usr/bin/python3.7
Nothing to configure.

$ python3 --version
Python 3.7.5