rexec in jython??

[Mark Fink]

Hi there,
I at the moment port a library from Python to Jython (at lease I try to
do so :-))). The library uses the Rexec to form a type adapter to cast
parameters given as text into the according Jython type. I learned
rexec is not available in Jython. Is something that is commonly used in
Jython for such tasks available?
In general: how do I find such information by myself?
Best Regards,
Mark