def p_expr_LE_expr(p):
    """ expr : expr LE expr
    """
    p[0] = make_binary(p.lineno(2), 'LE', p[1], p[3], lambda x, y: x <= y)
def p_expr_LE_expr ( p ) : p [ 0 ] = make_binary ( p . lineno ( 2 ) , 'LE' , p [ 1 ] , p [ 3 ] , lambda x , y : x <= y )
expr : expr LE expr