Re: [Jython-dev] sre_constants.MAGIC

[<bc...@wo...>]

[Kevin Butler]
>
>> (somehow my Linux jython
>> install is now giving 'AssertionError: SRE module mismatch', and I haven't chased
>> that down yet).
>
>Looks like the reason is that I've installed python2.2 on this machine, so now jython
>is using the python2.2 sre, etc. modules, instead of python2.1 which I had been using.
>
>This causes a problem because the sre_constants 'MAGIC' number was bumped from 20010320
>to 20010701.
>
>Seems like jython should probably ship with an sre_constants.py that is compatible with
>_sre?

It does. Jython-21a3 contains a sre magic of 20010320. The CVS version
does not contain copies of CPython modules (except the module that we
have had to modify to make them work with jython).

>I assume the right thing to do for now would be to enhance the jython _sre module to be
>20010701-compatible.

Absolutely not. Jython-2.1 work with the modules form CPython-2.1.1. It
is not tested or intended to work with CPython-2.2 modules.

20010701-compatibility should be added after the release of jython-2.1
final.

>Instead, I just modified my python.path in /usr/share/jython/registry to point to
>python2.1 

And that is the right way to run the CVS version of jython. I do it by
having this in my %HOME%/.jython file:

    python.path=d:\\python\\Python-2.1.1\\Lib

>instead of letting jython (somehow?) find python2.2...

How indeed! It should not attempt do that automaticly. Maybe it is done
by site.py that is reading .pth files?

regards,
finn