[pypy-dev] debugging extension segfault

[Robin Becker]

Thanks Maciej,


On 23/11/2015 14:45, Maciej Fijalkowski wrote:
> as far as I remember, C extension in reportlab is optional. Just
> disable it. If it's there for speedups, it's very likely it slows
> things down on pypy.

I know that reportlab can run without the _rl_accel extension, but the one 
that's seg faulting is _renderPM which we use to create pix maps (ie raw rgb 
images). I don't have a python alternative for that so some RL features are 
unsupported. For PDF only pypy seems to work fine.

>
> Reference count is a fake thing on pypy, don't use it if you can help it.
>

I think the reference counts are just used to try and see that the _rl_accel.pyd 
is doing the right thing wrt refcounts.

> builtin codes have no filename, you have to somehow deal with it. I
> think the problem comes from a fact that on cpython builtin functions
> don't have code.
>
the test that fails is just trying to check doctests.

.........

A bit of googling tells me I should be using platform.python_implementation() to 
check for pypy.
-- 
Robin Becker