python-dev-is-python3 3.11.4-1 (ppc64el binary) in ubuntu mantic

 Starting with the Debian 11 (bullseye) and Ubuntu 20.04 LTS (focal)
 releases, all python packages use explicit python3 or python2
 interpreter and do not use unversioned /usr/bin/python-config at all.
 Some third-party code is now predominantly python3 based, yet may use
 /usr/bin/python-config.
 .
 This is a convenience package which ships a symlink to point
 /usr/bin/python-config script at the current default python3. It may
 improve compatibility with other modern systems, whilst breaking some
 obsolete or 3rd-party software.
 .
 No packages may declare dependencies on this package.