On Jan 23, 2022, at 08:17, Dorian ROSSE <dorianbrice@hotmail.fr> wrote:

Every time I miss a program python because I use the most Ubuntu instead fedora I use 'pip3 install theprogrampython '

But I don't understand how to become more tough dnf,

Well, you are doing it in a way that will break your OS, eventually. It’s not a question of DNF becoming “tougher”. You are suggesting people use two different package managers, simultaneously, and neither knows about the other.

 Imagine hiring two builders to install a new furnace in a house, and not telling them about the other. You’d end up with two confused builders and a broken furnace. 

If you want to use pip as root and can’t be bothered to use virtual environments, install python outside of DNF, either from source into /usr/local or /opt, or use something like “conda”, which has its own prefix. Then, at least if it breaks something, it won’t prevent you from updating your OS. 

FWIW, in Centos 8 stream, DNF uses a python that isn’t installed as /usr/bin/python so it is less likely for ignorant people to break, although I’ve discovered that Ansible *does* find it and will happy install python modules in it and break things. 

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Jonathan Billings