def single_expr_list(s):
"""parse list values, handle expr list in the end"""
return AST.Expr_List([s[0]])
def mutiple_expr_list(s):
"""parse list values, handle expr list in the beginning or the middle"""
# return AST.List_Val(s[0].get_expr_list, None, s[0].gettokentype())
return AST.Expr_List(s[0].get_expr_list() + [s[2]])
