如何在Python中将列表转换为嵌套的dict

def list_to_nested_dict(lst):
    result = {}
    for i in range(len(lst)):
        result[i] = {
            'value': lst[i],
            'children': {}
        }
    return result

my_list = ['a', 'b', 'c']
nested_dict = list_to_nested_dict(my_list)
print(nested_dict)

{
    0: {'value': 'a', 'children': {}},
    1: {'value': 'b', 'children': {}},
    2: {'value': 'c', 'children': {}}
}