Python:将列表列表转换为元组的元组

Question

Python 新手!我需要帮助转换列表元组的列表。

我想调用 append_as_tuples 函数，但每次返回时，它都说
它只能将列表(不是元组)连接到列表

这是我目前所拥有的:

def append_as_tuple(t, l):
    ''' Convert list l to a tuple and append it to tuple t as a single value '''
    return t[:] + (tuple(l),)  

def convert_lists(lol):
    t = []
    if type(lol) == a or type(lol) == tuple:
        return [convert_lists(lol) for i in t]
    return append_as_tuples(lol,a)

#- test harness#

a=[range(5), range(10,20), ['hello', 'goodbye']]  
print a  
print convert_lists(a)  
print convert_lists([])  

Answer 1

要将 list_of_lists 转换为元组的元组，请使用

tuple_of_tuples = tuple(tuple(x) for x in list_of_lists)