Hi Florin The refcount garbage collector is only marginally supported (as far as our tests go), it's definitely neither tested nor really supported when translated, it was always very slow for example. (and as you noticed, there is no support for weakrefs for example) On Fri, Mar 18, 2016 at 9:57 AM, Papa, Florin <florin.papa@intel.com> wrote:

Hi all,

This is Florin Papa from the Dynamic Scripting Languages Team at Intel Corporation.

I am trying to build pypy to use the refcount garbage collector, for testing purposes. I am following the indications here [1], but the following command fails:

pypy ../../rpython/bin/rpython -O2 --gc=ref targetpypystandalone

with the error:

[translation:ERROR] OpErrFmt: [<W_TypeObject ‘exceptions.ImportError’ at 0x89a68a8>: No module named _weakref]

When I run pypy in interactive mode, “import _weakref” works fine. I encounter the same error if I try to use python to run the rpython script. Is the refcount garbage collector still supported?

[1] http://doc.pypy.org/en/latest/config/translation.gc.html

Regards,

Florin

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