Python 3.9 to 3.10 validation and cleanup

[Daniel-I]

@cscs

you didnt …

@Daniel-I

sudo pip list

Do that, for anything but list, right?
Do not use sudo with pip

Ah, my mistake… I should have included the full commands I ran from the stable “wiki” post…

@philm

Do ‘pip freeze’ BEFORE the update

If you might have installed something via pip,
get this info before the python upgrade,
as there’s no easy way to get it afterwards.

sudo pip freeze > pip_list_sudo.txt
pip freeze --user > pip_list_user.txt
/path/to/<venv_name>/python -m pip freeze -l > pip_list_<venv_name>.txt

After the upgrade, although they say to do something like
sudo pip install -r pip_list_sudo.txt,
look at the lists and consider whether you still want them all.

It’s generally not a good idea to install with pip in the system python,
so look for packages you could install from AUR instead,
and if you still want some pip installs, do: pip install --user

Also, the list from ‘pip freeze’ includes version numbers,
so you might want to manually install afresh to get current versions.

pacman -Qoq /usr/lib/python3.9 is quite different.
If you use it before the update, it will list many packages
that pacman will soon re-install for python 3.10,
so use it after the update, when it will get only AUR packages.
To use it with pikaur:
pikaur -S $(pacman -Qoq /usr/lib/python3.9) --rebuild

… so one of my commands was run with sudo as recommended

• $ sudo pip freeze > pip_list_sudo.txt
• $ pip freeze --user > pip_list_user.txt

@cscs

@Daniel-I

can I just delete my HOME folder “leftovers”?

yes.

That’s good news, I was hoping that was the case!

@cscs

@Daniel-I

I also found some python 3.9 leftovers in /usr/lib/… can I delete this too?

Now this is odd. I am inclined to say yes, as nothing owns it … but I still wonder why it exists.
(as noted above these directories usually are removed along with the python package)

The only time I’ve experienced something like this (under Windows) was when a file was locked or in use or not part of the uninstall script… and usually folders refuse to delete so long as there are any files inside. But as you can see from the folder that the vast majority of the /usr/lib/python3.9 folder was removed… with the exception of one file that prevented its parent folders from being removed.