if __name__ == "__main__":
    try:
        retval = main(sys.argv)
    except KeyboardInterrupt:
        sys.exit(1)
    except SystemExit:
        raise
    except:
        import traceback, logging
        if not log.handlers and not logging.root.handlers:
            logging.basicConfig()
        skip_it = False
        exc_info = sys.exc_info()
        if hasattr(exc_info[0], "__name__"):
            exc_class, exc, tb = exc_info
            if isinstance(exc, IOError) and exc.args[0] == 32:
                # Skip 'IOError: [Errno 32] Broken pipe': often a cancelling of `less`.
                skip_it = True
            if not skip_it:
                tb_path, tb_lineno, tb_func = traceback.extract_tb(tb)[-1][:3]
                log.error("%s (%s:%s in %s)", exc_info[1], tb_path,
                    tb_lineno, tb_func)
        else:  # string exception
            log.error(exc_info[0])
        if not skip_it:
            if log.isEnabledFor(logging.DEBUG):
                print()
                traceback.print_exception(*exc_info)
            sys.exit(1)
    else:
        sys.exit(retval)