Re: [Jython-dev] Problem with import re when Jython is embedded

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

[Schmidmeier, Arno]

>Hello,
>I have following problem.
>I have a Jython Interpreter embeded in a Java-application. Whenever I
>execute 
>
>import re 
>
>in the embedded application, I get following error:
>
>Traceback (innermost last):
>  File "<string>", line 1, in ?
>  File "C:\Programme\Jython\Lib\re.py", line 28, in ?
>  File "C:\Programme\Jython\Lib\sre.py", line 17, in ?
>  File "C:\Programme\Jython\Lib\sre_compile.py", line 15, in ?
>AttributeError: class 'org.python.modules._sre' has no attribute 'MAGIC'
>
>
>When I execute it from the "commandline"
>nothing happens.
>
>Jython 2.1a1 on java1.3.0_01 (JIT: null)
>Type "copyright", "credits" or "license" for more information.
>>>> import re
>>>>
>
>I do not call PySystemState.initialize nor di I call
><>Interpreter.initialise. However
>python.home and install.root are defined in the Java.lang.System.Properties?
>
>Any comments?

It sounds like a version mismatch. In the released Jython-2.0 neither
the "sre_compile" nor the "_sre" module contained a MAGIC field.

In the 2.1 series a MAGIC field was added to both modules. I guess your
embedded use of jython picks up a different and more recent version of
the standard library. It can be a library from either Jython 2.1a1 or
CPython 2.1.

regards,
finn