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python ModuleNotFoundError : 'CommandNotFound'

rated 0 times [ 0] [ 0] / answers: 1 / hits: 14038 / 2 Years ago, sat, july 23, 2022, 4:32:24

when I opened terminal and $ pip install -U pip setuptools, I got an error message.

Traceback (most recent call last):

  File "/usr/lib/command-not-found", line 27, in <module>

    from CommandNotFound.util import crash_guard

ModuleNotFoundError: No module named 'CommandNotFound'

I use python3.5, and its path is /usr/bin/python3.5

I tried to find CommandNotFound package but I can't find it.

How can I fix this error?

[edit] : OS Ubuntu 16.04.3 LTS

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neasinient

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3 Years ago

answered 2 Years ago initiallartebeest · Accepted Answer

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Solution: Unlike I mentioned before my python3.5.1 installation was not removed by the update. It was still under /usr/local/bin/python3.5.

Tracing the Error: I wrote a few debug lines into /usr/lib/python3.5/_sysconfigdata.py:

print("python-version", sys.version_info)

print("python-gcc-version",sys.version)

print("python-executable",sys.executable)

The output was different between calling /usr/bin/python3 and rhythmbox, but the python-executable was in both ways /usr/bin/python3

When I searched for the wrong installation using where is python3 and
removed

/usr/local/bin/python3.5

Then I purged and reinstalled python3 and ran apt install -f.
So this Error disappeared.

Remember: never install stuff from source, if it might be in the repos sometime or, at least remove it before your package manager installs it.