2017-11-06 22:16 GMT+01:00 Steve Dower :

I don't believe CPython *partially* supports any platforms - either they are fully supported or they are not supported.

Ok. So there are two questions: * Where is the list of platforms "endorsed" by CPython ("fully supported") * How can we decide when to start to support support a new platform? Usually, developers begin with a nice looking change: short, not intrusive. But later, the real change comes, and it's much larger and uglier :-) And the rationale for the first change is "come on, it's just a few lines!". And I have troubles to justify to reject such patch. Slowly, I'm pointing people to the right section of the PEP 11. Victor

2017-11-06 22:24 GMT+01:00 Antoine Pitrou :

We support POSIX-compatible platforms. Do OpenBSD and NetBSD need special care?

Aha, "POSIX", you are funny Antoine :-D If it was a single #ifdef in the whole code base, I wouldn't have to start such thread on python-dev :-) Open issues with "OpenBSD" in the title: 31630: math.tan has poor accuracy near pi/2 on OpenBSD and NetBSD 31631: test_c_locale_coercion fails on OpenBSD 31635: test_strptime failure on OpenBSD 31636: test_locale failure on OpenBSD 25342: test_json segfault on OpenBSD 25191: test_getsetlocale_issue1813 failed on OpenBSD 23470: OpenBSD buildbot uses wrong stdlib 12588: test_capi.test_subinterps() failed on OpenBSD (powerpc) 12589: test_long.test_nan_inf() failed on OpenBSD (powerpc) CPython already contais 11 "#ifdef (...) __OpenBSD__" in C and 11 sys.platform.startswith('openbsd') in Python. Supporting a "POSIX" platform requires some changes :-) Open issues with "NetBSD" in the title: 31925: [NetBSD] test_socket creates too many locks 30512: CAN Socket support for NetBSD 31927: Fix compiling the socket module on NetBSD 8 and other issues 31630: math.tan has poor accuracy near pi/2 on OpenBSD and NetBSD 31894: test_timestamp_naive failed on NetBSD CPython already contains 17 "#ifdef (...) __NetBSD__" and 7 "platform.startswith('netbsd')" in Python. MinGW: ... hum, there are 57 open MinGW issues, use the bug tracker to list them ;-) Cygwin: ... hum, there are 23 open Cygwin issues, use the bug tracker to list them ;-) etc. Victor

2017-11-06 23:07 GMT+01:00 Antoine Pitrou :

The reason that testing on them is interesting, IMHO, is to chase potential Linux-isms in our code base. Circumventing {Free,Open,Net}BSD-specific deficiences is not.

Serhiy found at least an interesting issue thanks to OpenBSD, a bug in memory debug hooks: https://bugs.python.org/issue31626 Victor