E: The repository 'http://ppa.launchpad.net/jonathonf/python-3.6/ubuntu disco Release' does not have a Release file

Question

I have been trying to install Devstack and this happened while "./stack.sh".

Solution

You should remove this PPA from the system with

sudo add-apt-repository -r ppa:jonathonf/python-3.6

and then run

sudo apt update

to get actual package indexes.

Please note if you really need the packages from this PPA, then consider to contact JonathonF and ask him about packaging for disco. See example text in this answer.

Comments

[maugch]

That command is to add a repository not remove it. you need to add --remove

[david]

Removed it, but doing a sudo apt update still results in error: "InRelease 403 Forbidden [IP: 91.189.95.83 80] E: The repository 'ppa.launchpad.net/jonathonf/python-3.5/ubuntu bionic InRelease' is no longer signed. ".

[N0rbert]

@david you have to visit the launchpad.net/~jonathonf to understand that PPAs which have moved to become private access including Python 3.5.

[david]

@N0rbert thx, I already saw some similar statement. But how to solve it? I simply want to write some OSS project :-) ...and I don't need this PPA, i guess, i just want to get rid of it.