Installation issues Debian Stretch amd64

Seeking help.

Cannot find repository package.
Added in sources.list:
deb archive.panda3d.org/debian stretch main

key OK:

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E375BC9D
Executing: /tmp/apt-key-gpghome.npEcxGyKy6/gpg.1.sh --keyserver keyserver.ubuntu.com --recv-keys E375BC9D
gpg: key BFC01641E375BC9D: public key “Panda3D Buildbot panda3d-bot@panda3d.org” imported
gpg: Total number processed: 1
gpg: imported: 1

Ign:11 archive.panda3d.org/debian stretch/main amd64 Packages
Ign:12 archive.panda3d.org/debian stretch/main Translation-en
Ign:13 archive.panda3d.org/debian stretch/main Translation-en_US
Ign:5 archive.panda3d.org/debian stretch/main all Packages
Err:11 archive.panda3d.org/debian stretch/main amd64 Packages
404 Not Found
Ign:12 archive.panda3d.org/debian stretch/main Translation-en
Ign:13 archive.panda3d.org/debian stretch/main Translation-en_US

W: The repository ‘http://archive.panda3d.org/debian stretch Release’ does not have a Release file.

Is the package file elsewhere? Or would I have to compile from Source?

Thanks in advance

We don’t offer Debian Stretch builds at the moment.

If you only mean to use Panda with Python, it is easier to install it with pip:

pip install panda3d