[Python-Dev] [compatibility-sig] making sure importlib.machinery.SourceLoader doesn't throw an exception if bytecode is not supported by a VM

[Brett Cannon]

On Tue, Jun 12, 2012 at 12:38 PM, Alex Gaynor <alex.gaynor at gmail.com> wrote:

> For PyPy: I'm not an expert in our import, but from looking at the source
>
> 1) imp.cache_from_source is unimplemented, it's an AttributeError.
>

Well, you will have it come Python 3.3 one way or another. =)


>
> 2) sys.dont_write_bytecode is always false, we don't respect that flag (we
> really
>   should IMO, but it's not a high priority for me, or anyone else
> apparently)
>

But doesn't PyPy read and write .pyc files (
http://doc.pypy.org/en/latest/config/objspace.usepycfiles.html suggests you
do)? So I would assume you are not affected by this. Jython and IronPython,
though, would be (I think).
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