def visit_tryexcept(self, node):
        """return an astroid.TryExcept node as string"""
        trys = ["try:\n%s" % self._stmt_list(node.body)]
        for handler in node.handlers:
            trys.append(handler.accept(self))
        if node.orelse:
            trys.append("else:\n%s" % self._stmt_list(node.orelse))
        return "\n".join(trys)
return an astroid.TryExcept node as string