Spurious issue in CPython 2.7.5

From	"thomas povtal.org" <thomas@povtal.org>
Newsgroups	comp.lang.python
Subject	Spurious issue in CPython 2.7.5
Date	2016-05-24 12:22 +0200
Message-ID	<mailman.52.1464090460.20402.python-list@python.org> (permalink)
References	<779717266.18172.1464085350716.JavaMail.open-xchange@ox.netsite.dk>

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   Hi,

   Please excuse me if this is not the right place, but I have some issues
   with CPython on a NUMA machine.

   1: I get "RuntimeWarning: tp_compare didn't return -1 or -2 for
   exception". It's a line like:

   "if Foo = False:" where Foo is a global variable (global Foo).

   Now, I've searched somewhat on google for indications on when this warning
   can be seen. However, I haven't really been able to understand why and
   even if it's significant or not. (At face value I'm nervous the Python
   runtime environment is corrupted for that process).

   2: In my process later on I get: "OverflowError: long too big to convert".
   This happens in different places and seems to always relate to  obtaining
   a length of something (dict or list created by list comprehension). Fx

   "for i in xrange(0, len_of_stuff, max_section_size):"

   en_of_stuff is always less than the max long (around 600).

   We're using gevent and I'm suspecting some "threading" could cause this,
   as I'm able to replicate it locally with the same data.

   Kind regards,

   Thomas

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Thread

Spurious issue in CPython 2.7.5 "thomas povtal.org" <thomas@povtal.org> - 2016-05-24 12:22 +0200
  Re: Spurious issue in CPython 2.7.5 Novocastrian_Nomad <gregory.j.baker@gmail.com> - 2016-05-24 08:05 -0700
    Re: Spurious issue in CPython 2.7.5 "thomas povtal.org" <thomas@povtal.org> - 2016-05-24 17:20 +0200
  Re: Spurious issue in CPython 2.7.5 Steven D'Aprano <steve@pearwood.info> - 2016-05-25 03:12 +1000
    Re: Spurious issue in CPython 2.7.5 Chris Angelico <rosuav@gmail.com> - 2016-05-25 03:23 +1000
    Re: Spurious issue in CPython 2.7.5 "thomas povtal.org" <thomas@povtal.org> - 2016-05-25 14:04 +0200
    Re: Spurious issue in CPython 2.7.5 Tim Golden <mail@timgolden.me.uk> - 2016-05-25 13:13 +0100
    Re: Spurious issue in CPython 2.7.5 "thomas povtal.org" <thomas@povtal.org> - 2016-05-25 14:26 +0200

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