This allows the exception to be parsed like a native exception.

    Always raise as data_exception so it goes in the errors table. */

    IF exc_name IS NOT NULL THEN

    -- Re-raise non-PL/Python exceptions

    ELSE

        '''+reraise_exc+'''\

    if util.is_list(value_): # reference (different from a pointer)

        target = get_1(root, value_)

        if target != None: value_ = xml_dom.value(target)

            warnings.warn(UserWarning('XPath reference target missing: '

                +str(value_)+'\nXPath: '+str(xpath)))

            value_ = None

        return self

    def main_loop(self):

        while True:

            try: call = self.queue.get(timeout=0.1) # sec

            except Queue.Empty:

        env_names), u''))

    # Set default verbosity. Must happen after by_col is set.

        if test: verbosity = 0.5 # automated tests should not be verbose

        elif by_col: verbosity = 3 # show all queries to assist profiling

        else: verbosity = 1.1 # just show row progress

        out_is_xml_ref[0] = out_is_xpaths and not out_is_db

        def process_rows(process_row, rows, rows_start=0):

            @param process_row(in_row, i)

            @rows_start The (0-based) row # of the first row in rows. Set this

                only if the pre-start rows have already been skipped.

                        '$'+str(in_)) # value is placeholder that documents name

                    mappings[i] = [in_, nodes]

                if id_node == None:

                sys.stdout.write('Put template:\n'+str(root))

                sys.stdout.flush()