Ryan, There is currently a likely problem with Python's GIL being released by callback functions. The exception is at least preventing nastier things from happening.
This was briefly outlined some time ago: http://www.mail-archive.com/rpy-list@lists.sourceforge.net/msg01744.html Nathaniel proposed a patch... but it has been pretty busy on other things since then. You could either disallow simultaneous requests, or hack a cheap locking mechanism of your own in the meanwhile (or catch exceptions). L. Ryan Kroiss wrote: > Hi all, > > I'm trying to develop a web site written in python that uses rpy2. The > site has some HTML input forms. The data from these forms is then > passed to R using rpy2. I've run into a problem with this though. If I > try to run more than one request at a time, I get a RRuntimeError that > concurrent access to R is not allowed. Does anyone know a way to work > around this? Can more than one instance of R be created? Is there a > way to somehow synchronize the access to R? Creating threads in the > python code wouldn't really work because separate requests would be > creating separate processes. Any help/suggestions would be appreciated. > > Thank you, > Ryan > > ------------------------------------------------------------------------------ > _______________________________________________ > rpy-list mailing list > rpy-list@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/rpy-list ------------------------------------------------------------------------------ Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are powering Web 2.0 with engaging, cross-platform capabilities. Quickly and easily build your RIAs with Flex Builder, the Eclipse(TM)based development software that enables intelligent coding and step-through debugging. Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com _______________________________________________ rpy-list mailing list rpy-list@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/rpy-list
