Dear RPy Developers,
Thanks for the product. Within our little PyMVPA (www.pymvpa.org) we use
it to interface with some machine learning methods available in R. Problem
comes whenever R code segfaults -- then regardless either python section is
interactive or not we are presented with R's dialog giving options to save dump
etc... ie the code
00562 if(R_Interactive) {
00563 REprintf("\nPossible actions:\n1: %s\n2: %s\n3: %s\n4: %s\n",
00564 "abort (with core dump, if enabled)",
00565 "normal R exit",
00566 "exit R without saving workspace",
00567 "exit R saving workspace");
00568 while(1) {
00569 if(R_ReadConsole("Selection: ", ConsoleBuf, CONSOLE_BUFFER_SIZE,
00570 0) > 0) {
00571 if(ConsoleBuf[0] == '1') break;
00572 if(ConsoleBuf[0] == '2') R_CleanUp(SA_DEFAULT, 0, 1);
00573 if(ConsoleBuf[0] == '3') R_CleanUp(SA_NOSAVE, 70, 0);
00574 if(ConsoleBuf[0] == '4') R_CleanUp(SA_SAVE, 71, 0);
00575 }
00576 }
That stalls unittests which are running overnight, and moreover for some reason
it fills up stdout (or stderr... didn't check - stderr gets redirected to
stdout) with "Selection: " until disk fills up ;)
So, the question is -- since embedded R starts with hardcoded
R_Interactive, is there some other way to prevent "interaction" with segfault
'dialog'?
In my blind attempt I've tried to do something evil like
def input1(*args): return "1" # which is "1: abort (with core
dump, if enabled)"
rpy.set_rpy_input(input1)
which seemed to work at first, but whole battery of unittests started to
puke at some other places with "XXX lineno: 19, opcode: 0" and "SystemError:
unknown opcode" at other places...
I was using python2.5 and python-rpy 1.0.3-8 (rebuilt with debugging
symbols) on Debian amd64 system.
Thanks in advance for ideas!
--
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