#pypy on 2017-08-15 — irc logs at freenode.irclog.whitequark.org

2017-07-05 11:38 cfbolz changed the topic of #pypy to: PyPy, the flexible snake (IRC logs: https://botbot.me/freenode/pypy/ ) | use cffi for calling C | "the modern world where network packets and compiler optimizations are effectively hostile"

00:00 <bbot2> Started: http://buildbot.pypy.org/builders/pypy-c-jit-linux-s390x/builds/636 [default]

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00:14 <bbot2> Success: http://buildbot.pypy.org/builders/pypy-c-jit-linux-x86-32/builds/4138 [default]

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01:00 <bbot2> Started: http://buildbot.pypy.org/builders/pypy-c-jit-linux-x86-64/builds/4836 [py3.5]

01:00 <bbot2> Started: http://buildbot.pypy.org/builders/own-linux-x86-64/builds/6148 [py3.5]

01:00 <bbot2> Started: http://buildbot.pypy.org/builders/own-linux-x86-32/builds/5379 [py3.5]

01:00 <bbot2> Started: http://buildbot.pypy.org/builders/pypy-c-jit-linux-x86-32/builds/4139 [py3.5]

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01:03 <bbot2> Failure: http://buildbot.pypy.org/builders/pypy-c-jit-linux-x86-64/builds/4836 [py3.5]

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01:29 <bbot2> Failure: http://buildbot.pypy.org/builders/pypy-c-jit-macosx-x86-64/builds/3214 [default]

01:29 <bbot2> Started: http://buildbot.pypy.org/builders/pypy-c-jit-macosx-x86-64/builds/3215 [py3.5]

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01:39 <bbot2> Failure: http://buildbot.pypy.org/builders/pypy-c-jit-macosx-x86-64/builds/3215 [py3.5]

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02:29 <bbot2> Failure: http://buildbot.pypy.org/builders/pypy-c-jit-linux-x86-32/builds/4139 [py3.5]

02:30 <bbot2> Failure: http://buildbot.pypy.org/builders/own-linux-x86-64/builds/6148 [py3.5]

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03:00 <bbot2> Started: http://buildbot.pypy.org/builders/jit-benchmark-linux-x86-64/builds/2300

03:00 <bbot2> Started: http://buildbot.pypy.org/builders/jit-benchmark-linux-x86-32/builds/3092

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03:11 <bbot2> Failure: http://buildbot.pypy.org/builders/own-linux-x86-32/builds/5379 [py3.5]

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05:49 <bbot2> Failure: http://buildbot.pypy.org/builders/own-win-x86-32/builds/1502 [default]

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06:22 <mattip> hi

06:23 <fijal> mattip: hi

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06:24 <mattip> fijal: congrats - lots of traction for the blog post on hn, reddit, let's see if that converts to a contract

06:24 <fijal> yeah let's see

06:24 <fijal> also lots of hatred

06:24 <fijal> but maybe that's the price of popularity

06:25 <fijal> it does not seem to be particularly directed at us, just being vile on the internet

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06:29 <mattip> I kind of liked the idea of collecting data on real world GIL costs, https://github.com/chrisjbillington/gil_load

06:29 <simpson> Nifty idea.

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06:36 <bbot2> Failure: http://buildbot.pypy.org/builders/own-linux-s390x/builds/671 [default]

06:40 <mattip> anyone have any idea about what broke on s390 own tests (aborted)?

06:40 <mattip> http://buildbot.pypy.org/summary?category=linux-s390x

06:41 <mattip> seems to be between 92118:d6b37b7c15ee and 92120:4b21dcb59a60

06:44 <mattip> strange, those are my commits to cpyext, but the failure AFAICT is in pypy/module/cStringIO/test/test_interp_stringio.py

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06:48 <bbot2> Failure: http://buildbot.pypy.org/builders/jitbackendonly-own-linux-armhf/builds/1562

06:48 <mattip> ahh, it happened between 92101:f58c69 and 92109:8a997c, http://buildbot.pypy.org/builders/own-linux-s390x

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07:15 <bbot2> Failure: http://buildbot.pypy.org/builders/pypy-c-jit-linux-s390x/builds/636 [default]

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08:30 <bbot2> Success: http://buildbot.pypy.org/builders/jit-benchmark-linux-x86-32/builds/3092

08:42 <idnar> simpson: I think GHC "dodges" a lot of tricky problems with Haskell's pervasive immutability, though

08:44 <LarstiQ> idnar: something like that is impression I got from http://joeduffyblog.com/2010/01/03/a-brief-retrospective-on-transactional-memory/

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09:20 <mattip> by trying to avoid one mess have I made another?

09:21 <mattip> 9ddefd44f80d was meant to allow preexisting errors pass through cpyext calls without modifying the Exception to a SystemError

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09:21 <mattip> but there is a test for what happens when one calls PyErr_Clear() that now fails

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09:23 <mattip> what happens if there is a pre-existing error, someone calls PyErr_Clear() somewhere in CAPI but the CAPI function erroneously returns NULL?

09:25 <mattip> or even if there is a pre-existing error, and the next CAPI call never checks nor calls PyErr_Clear() and returns a value?

09:25 * mattip trying to check what happens on CPython, I fear they do not have these checks

09:30 <bbot2> Failure: http://buildbot.pypy.org/builders/jitbackendonly-own-linux-armhf-v7/builds/1360

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10:07 <idnar> mattip: pretty sure you get a nonsense exception when something checks PyErr eventually

10:09 <arigato> mattip: actually, across a few places like PyObject_Call*(), CPython checks for nonsense and complains with SystemError, I think

10:09 <arigato> where nonsense is defined as (PyErr_Occurred() != (result == NULL))

10:10 <arigato> (so both directions)

10:10 <idnar> I ran into http://bugs.python.org/issue950057 once upon a time

10:11 <idnar> I guess maybe the checks arigato mentions weren't around back then

10:13 <mattip> idnar: thanks, that was a while ago

10:14 <idnar> I think that's the first and only CPython bug report I ever filed :)

10:15 <mattip> arigato: there are 2^4 possible combinations of pre-existing_error, has_error, has_result, and expect_null

10:16 <mattip> I don't really fancy checking for all of them

10:18 <mattip> before 9ddefd44f80d we only had 2^3, since we ignored pre-existing_error, but that caused us to override

10:18 <mattip> a pre-existing error with a SystemError

10:19 <mattip> I could just make a best effort, but wonder where it will cause problems

10:19 * mattip off, later

10:20 <arigato> see you

10:25 <exarkun> Did I break pypy.objspace.std.test.test_methodcache or did someone else? :) http://buildbot.pypy.org/summary/longrepr?testname=AppTestMethodCaching.%28%29.test_many_names&builder=own-linux-x86-32&build=5379&mod=pypy.objspace.std.test.test_methodcache

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12:29 <fijal> exarkun: that test breaks depending on the phase of the moon

12:29 <fijal> I think

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12:31 <exarkun> okay, maybe it'll be happy tomorrow then :)

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12:44 <bbot2> Success: http://buildbot.pypy.org/builders/jit-benchmark-linux-x86-64/builds/2300

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13:26 <bbot2> Failure: http://buildbot.pypy.org/builders/pypy-c-jit-win-x86-32/builds/3308 [default]

13:27 <bbot2> Started: http://buildbot.pypy.org/builders/pypy-c-jit-win-x86-32/builds/3309 [py3.5]

13:31 <bbot2> Failure: http://buildbot.pypy.org/builders/pypy-c-jit-win-x86-32/builds/3309 [py3.5]

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15:29 <exarkun> mmm. readline and rlcompleter mutually recursive on python 3.

15:30 <mattip> too bad there are no easy bugs to fix on py3.5, only extremely difficult ones

15:32 <mjacob> mattip: yes, i found out multiple times that this can be quite a motivation killer (like it was in the py3k / py3.3 branch)

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16:02 <mjacob> arigato: completely off-topic, but do you have anything to add to https://stackoverflow.com/questions/45694056/which-object-declarations-in-c-cause-storage-to-be-reserved-i-e-are-definition ?

16:02 <mjacob> arigato: (i'm asking you because you had to deal with this at some point with cffi)

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16:29 <kenaan> exarkun py3.5 9f2963dca939 /: Allow readline text insertion without preparation.

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16:41 <exarkun> will this translate? https://gist.github.com/exarkun/19401ceaf7f1e406570848f65512b18e

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16:59 <fijal> exarkun: it should

17:00 <fijal> exarkun: the reason being that this code is executed at import time, which is meta-programming

17:00 <fijal> so construction of typedef is irrelevant, the frozen instance of typedef is what matters

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17:34 <exarkun> cool

17:34 <exarkun> thanks

17:35 <kenaan> exarkun py3.5 cce9378e5bb7 /pypy/module/exceptions/interp_exceptions.py: Only expose OSError.winerror on Win32.

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22:00 <bbot2> Started: http://buildbot.pypy.org/builders/jitbackendonly-own-linux-armhf/builds/1563

22:00 <bbot2> Started: http://buildbot.pypy.org/builders/jitbackendonly-own-linux-armhf-v7/builds/1361

22:00 <bbot2> Started: http://buildbot.pypy.org/builders/own-linux-s390x/builds/672 [default]

22:00 <bbot2> Started: http://buildbot.pypy.org/builders/pypy-c-jit-macosx-x86-64/builds/3216 [default]

22:00 <bbot2> Started: http://buildbot.pypy.org/builders/pypy-c-jit-linux-x86-64/builds/4837 [default]

22:00 <bbot2> Started: http://buildbot.pypy.org/builders/own-linux-x86-64/builds/6149 [default]

22:00 <bbot2> Started: http://buildbot.pypy.org/builders/own-linux-x86-32/builds/5380 [default]

22:00 <bbot2> Started: http://buildbot.pypy.org/builders/own-win-x86-32/builds/1503 [default]

22:00 <bbot2> Started: http://buildbot.pypy.org/builders/pypy-c-jit-linux-x86-32/builds/4140 [default]

22:00 <bbot2> Started: http://buildbot.pypy.org/builders/pypy-c-jit-win-x86-32/builds/3310 [default]

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23:36 <bbot2> Failure: http://buildbot.pypy.org/builders/own-linux-x86-64/builds/6149 [default]

23:43 <bbot2> Success: http://buildbot.pypy.org/builders/pypy-c-jit-linux-x86-64/builds/4837 [default]

23:47 <bbot2> Failure: http://buildbot.pypy.org/builders/own-linux-x86-32/builds/5380 [default]

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