Hi folks, if you are hacking hooks or otherwise debugging pytest and plugins you can now use "--pdb" when collect/internal errors appear. For that, I have introduced a new experimental hook "pytest_exception_interact" which could also be used by IDE integrators for their debugging views, e.g.: def pytest_exception_interact(call): excinfo = call.excinfo pydev.set_trace(excinfo.type, excinfo.value, excinfo.tb) when this hook is called, stdout/stderr capturing will be de-activated already. It could also be used to spawn up a http/socket server so that one could remotely connect to it for debugging sessions. This is the commit: https://bitbucket.org/hpk42/pytest/commits/1d3ebb313d68d4bcb3f1a2e575febf196... cheers, holger