On 24/05/2019 19:59, Erwan Le Pape wrote: > python3 -c 'import socket; print(socket.getaddrinfo("fe80::1%1", 80))'` root@x067:[/home/root]python3 -c 'import socket; print(socket.getaddrinfo("fe80::1%1", 80))' [(<AddressFamily.AF_INET6: 24>, <SocketKind.SOCK_DGRAM: 2>, 17, '', ('fe80::1', 80, 0, 0))] I have not yet checked if the patches mentioned are installed. This is a system I am testing PyInstaller, and the python3 version is 3.6.8. OS-Level is: 7100-03-05-1524, but it was built on a different version of AIX. +++++++ This is the system I have the buildbot on: buildbot@x064:[/home/buildbot/aixtools-master]./python Python 3.8.0a4+ (heads/bpo-37009-thread-safe-dirty:b489efab81, May 22 2019, 15:13:31) [GCC 4.7.4] on aix Type "help", "copyright", "credits" or "license" for more information. >>> buildbot@x064:[/home/buildbot/aixtools-master]oslevel -s 7100-04-06-1806 buildbot@x064:[/home/buildbot/aixtools-master] buildbot@x064:[/home/buildbot/aixtools-master]./python -c 'import socket; print(socket.getaddrinfo("fe80::1%1", 80))' [(<AddressFamily.AF_INET6: 24>, <SocketKind.SOCK_DGRAM: 2>, 17, '', ('fe80::1', 80, 0, 0))] +++++ re the patches mentioned. a) not applicable for the systems above - both are AIX 7.1. b) the AIX 6.1 TL7 I build with says: root@x066:[/]instfix -i | grep IV52116     All filesets for IV52116 were found.