Comment 24 for bug 1849785

Note: I ensured that the ppa uses focal-proposed, now there are even more issues.

x86:
checking for python extension module directory... Traceback (most recent call last):
  File "<string>", line 20, in <module>
  File "/usr/lib/python3.8/sysconfig.py", line 512, in get_path
    return get_paths(scheme, vars, expand)[name]
  File "/usr/lib/python3.8/sysconfig.py", line 502, in get_paths
    return _expand_vars(scheme, vars)
  File "/usr/lib/python3.8/sysconfig.py", line 172, in _expand_vars
    _extend_dict(vars, get_config_vars())
  File "/usr/lib/python3.8/sysconfig.py", line 550, in get_config_vars
    _init_posix(_CONFIG_VARS)
  File "/usr/lib/python3.8/sysconfig.py", line 421, in _init_posix
    _temp = __import__(name, globals(), locals(), ['build_time_vars'], 0)
ModuleNotFoundError: No module named '_sysconfigdata_m_linux_x86_64-linux-gnu'

And Arm continues to be affected by:
Only fails on arm64 now (all others good):
15-basic-resolver.c:58:46: error: ‘__NR_open’ undeclared (first use in this function)
   58 | if (seccomp_syscall_resolve_name("open") != __NR_open)

As I said on a local build on arm64 it just works fine :-/