[boost] [python] can I stop iteration without exception being thrown?

Hi, I an using vector_indexing_suite for both standard containers export and for our in-house ones. I've noticed that boost::python::error_already_set is bwing thrown every time iteration in python over container instances is about to finish. The exception is ignored somewhere inside boost::python but it's still quite inconvenient for debugging: I want to catch actual error, but can't skip 100s of fake ones. Is there any reason why it was designed this way? Is there any way to avoid it? Gennadiy