def get_text_block(self, flush_left=0):
        """
        Return a contiguous block of text.

        If `flush_left` is true, raise `UnexpectedIndentationError` if an
        indented line is encountered before the text block ends (with a blank
        line).
        """
        try:
            block = self.input_lines.get_text_block(self.line_offset,
                                                    flush_left)
            self.next_line(len(block) - 1)
            return block
        except UnexpectedIndentationError, error:
            block, source, lineno = error.args
            self.next_line(1 - len(block)) # advance to last line of block
            raise
dataset/ETHPy150Open adieu/allbuttonspressed/docutils/statemachine.py/StateMachine.get_text_block/swapped operands of `-`