[SOLVED] Can't Revert to Repository Version of Python3

Flexico · 10-26-2023, 05:50 AM

I manually installed Python version 3.12.0 (the version that installed by default is 3.10.6), but it turns out I now need to manually install/update all plugins in addition to the main Python version. Preferring to let apt do that work, I tried to downgrade Python3 back to the repository version, but it says that it's still on version 3.10.6, even though when I actually run "python3" it says "3.12.0".

Code:

flexico@flexico-laptop-5590 ~ $ sudo apt install python3=3.10.6-1~22.04
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
python3 is already the newest version (3.10.6-1~22.04).
0 upgraded, 0 newly installed, 0 to remove and 11 not upgraded.
flexico@flexico-laptop-5590 ~ $ python3
Python 3.12.0 (main, Oct 24 2023, 11:47:45) [GCC 11.4.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> exit()

lvm_ · 10-26-2023, 06:05 AM

Apparently you installed it not as a deb package but as a bunch of files, so naturally apt which works with metadata provided by packages, not with actaual files, knows nothing about it. Try apt-get reinstall.

Flexico · 10-26-2023, 06:29 AM

That didn't work! I tried apt & apt-get.

Code:

flexico@flexico-laptop-5590 ~ $ sudo apt-get reinstall python3
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 11 not upgraded.
Need to get 0 B/22.8 kB of archives.
After this operation, 0 B of additional disk space will be used.
(Reading database ... 764194 files and directories currently installed.)
Preparing to unpack .../python3_3.10.6-1~22.04_amd64.deb ...
running python pre-rtupdate hooks for python3.10...
Unpacking python3 (3.10.6-1~22.04) over (3.10.6-1~22.04) ...
Setting up python3 (3.10.6-1~22.04) ...
running python rtupdate hooks for python3.10...
running python post-rtupdate hooks for python3.10...
Processing triggers for man-db (2.10.2-1) ...
flexico@flexico-laptop-5590 ~ $ python3 --version
Python 3.12.0

lvm_ · 10-26-2023, 06:52 AM

So maybe now you have two versions installed? To see a list of files installed from a package use 'dpkg-query -L python3', but only you know where you installed the newer version, although 'which python3' will point you in the right direction.

pan64 · 10-26-2023, 07:53 AM

yes, I think you have two versions installed, probably you can find them as python3.10 and python3.12 (and python3 is just a link to python3.12)

Flexico · 10-28-2023, 08:28 AM

Aha! "python3" pointed to "/usr/local/bin/python3" which was 3.12.0; I deleted those files and it reset back to "/user/bin/python3" (3.10.12). Thanks for the help!