Hi, I have opened an enhancement request (23830) with a suggested path that adds support for the AF_IUCV protocol family: IUCV is a hypervisor mediated communications method for z/VM guest virtual machines. Linux on z Systems (aka s390x) has supported this via the use of AF_IUCV sockets for many years (added to kernel Feb 2007). This suggested patch adds support to Python 2.7.9 for this socket type. I have built Python on both s390x and x86_64: both build cleanly and the test added to test_socket.py runs cleanly on s390x and is skipped on other platforms. ---------- components: Library (Lib) files: af_iucv.patch keywords: patch messages: 239743 nosy: neale priority: normal severity: normal status: open title: Add AF_IUCV support to sockets type: enhancement versions: Python 2.7 Added file: http://bugs.python.org/file38765/af_iucv.patch I would like help in improving the patch and making it a candidate for acceptance into the code base. Neale