ModuleNotFoundError: No module named ‘CommandNotFound’

[jiapei100]

Whenever I try

sudo apt update

I got:

Traceback (most recent call last):
File "/usr/lib/cnf-update-db", line 8, in <module>
from CommandNotFound.db.creator import DbCreator
ModuleNotFoundError: No module named 'CommandNotFound'
Reading package lists... Done
E: Problem executing scripts APT::Update::Post-Invoke-Success 'if /usr/bin/test -w /var/lib/command-not-found/ -a -e /usr/lib/cnf-update-db; then /usr/lib/cnf-update-db > /dev/null; fi'
E: Sub-process returned an error code

Any suggestions?
Pei

[Larz60+]

command is:
sudo apt-get update

[jiapei100]

command is:
sudo apt-get update

Well, yes... I'm using Ubuntu 18.04.3, in this version:

sudo apt update

is the same as

sudo apt-get update

[snippsat]

Looking at your previous Thread.
This likely mess up most the PATH to original Python version.
If looking at Package: command-not-found
So here see that dependency is the default python3 version,this will be the same for the Debian family Ubuntu,Mint...ect.
Look here for possible solution's.

As a advice you should not at all mess with default Python installation in Linux.
Using alias is safer than mess with export.
My advice is using pyenv Simple Python Version Management

[jiapei100]

My advice is using pyenv Simple Python Version Management

➜ ~ pyenv install -v 3.8.1
......
ERROR: Exception:
Traceback (most recent call last):
File "/tmp/tmp6a9wsa3z/pip-19.2.3-py2.py3-none-any.whl/pip/_internal/cli/base_command.py", line 188, in main
status = self.run(options, args)
File "/tmp/tmp6a9wsa3z/pip-19.2.3-py2.py3-none-any.whl/pip/_internal/commands/install.py", line 286, in run
with self._build_session(options) as session:
File "/tmp/tmp6a9wsa3z/pip-19.2.3-py2.py3-none-any.whl/pip/_internal/cli/base_command.py", line 101, in _build_session
session = PipSession(
File "/tmp/tmp6a9wsa3z/pip-19.2.3-py2.py3-none-any.whl/pip/_internal/download.py", line 559, in __init__
self.headers["User-Agent"] = user_agent()
File "/tmp/tmp6a9wsa3z/pip-19.2.3-py2.py3-none-any.whl/pip/_internal/download.py", line 144, in user_agent
zip(["name", "version", "id"], distro.linux_distribution()),
File "/tmp/tmp6a9wsa3z/pip-19.2.3-py2.py3-none-any.whl/pip/_vendor/distro.py", line 122, in linux_distribution
return _distro.linux_distribution(full_distribution_name)
File "/tmp/tmp6a9wsa3z/pip-19.2.3-py2.py3-none-any.whl/pip/_vendor/distro.py", line 677, in linux_distribution
self.version(),
File "/tmp/tmp6a9wsa3z/pip-19.2.3-py2.py3-none-any.whl/pip/_vendor/distro.py", line 737, in version
self.lsb_release_attr('release'),
File "/tmp/tmp6a9wsa3z/pip-19.2.3-py2.py3-none-any.whl/pip/_vendor/distro.py", line 899, in lsb_release_attr
return self._lsb_release_info.get(attribute, '')
File "/tmp/tmp6a9wsa3z/pip-19.2.3-py2.py3-none-any.whl/pip/_vendor/distro.py", line 552, in __get__
ret = obj.__dict__[self._fname] = self._f(obj)
File "/tmp/tmp6a9wsa3z/pip-19.2.3-py2.py3-none-any.whl/pip/_vendor/distro.py", line 1012, in _lsb_release_info
stdout = subprocess.check_output(cmd, stderr=devnull)
File "/tmp/python-build.20200222120905.3660/Python-3.8.1/Lib/subprocess.py", line 411, in check_output
return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
File "/tmp/python-build.20200222120905.3660/Python-3.8.1/Lib/subprocess.py", line 512, in run
raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command '('lsb_release', '-a')' died with <Signals.SIGABRT: 6>.
Makefile:1186: recipe for target 'install' failed
make: *** [install] Error 2

BUILD FAILEDCould not find platform independent libraries <prefix>
Could not find platform dependent libraries <exec_prefix>
Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>]
Fatal Python error: Py_Initialize: Unable to get the locale encoding
ModuleNotFoundError: No module named 'encodings'

Current thread 0x00007f597cccd340 (most recent call first):
( using python-build 1.2.16-5-g7097f820)

Inspect or clean up the working tree at /tmp/python-build.20200222120905.3660
Results logged to /tmp/python-build.20200222120905.3660.log

Last 10 log lines:
subprocess.CalledProcessError: Command '('lsb_release', '-a')' died with <Signals.SIGABRT: 6>.
Makefile:1186: recipe for target 'install' failed
make: *** [install] Error 2
Could not find platform independent libraries <prefix>
Could not find platform dependent libraries <exec_prefix>
Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>]
Fatal Python error: Py_Initialize: Unable to get the locale encoding
ModuleNotFoundError: No module named 'encodings'

Current thread 0x00007f597cccd340 (most recent call first):
➜ ~

Failed to install Python3.8.1 under pyenv

[snippsat]

➜ ~ pyenv install -v 3.8.1

There is no -v when you install.

pyenv install 3.8.1

You use capital -V after to check version.

python -V
Python 3.8.1