[C++-sig] Have error_already_set - now what?

[Johan Johansson]

Hi everyone

It's probably just me missing something obvious, but I'm having a very hard
time to get a useful error message when I catch an error_already_set in code
calling a python function/method. I've tried the following for lack of good
ideas:

try {
    ... some python call ...
    return 0;
} catch (error_already_set&) {
    assert(PyErr_Occurred());
    PyErr_Print();
    return -1;
}

Sure enough I'm getting -1 back, but nothing is printed to stderr AFAIK. Or
is this one of those cases where Python doesn't actually care about
sys.stderr and use C's notion of stderr instead?

What's a good way to find out what error occurred (exhaustively matching
doesn't strike me as good).

j
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