将字典元素打印为路径列表

Question

我正在尝试使用 Floyd-Warshall 算法和 networkx (Python) 打印所有可能的路径。问题是，我不知道如何正确地做到这一点（可读，作为列表）。我的图表中有这些路径：

X = nx.floyd_warshall(gra)
Y = {a: dict(b) for a, b in X.items()}
print(Y)

它returns这个：

{(0, 0): {(0, 0): 0, (1, 0): 1, (0, 1): 1, (1, 1): 2, (0, 2): 2, (1, 2): 3}, (1, 0): {(1, 0): 0, (0, 0): 1, (1, 1): 1, (0, 1): 2, (0, 2): 3, (1, 2): 2}, (0, 1): {(0, 1): 0, (0, 0): 1, (1, 1): 1, (0, 2): 1, (1, 0): 2, (1, 2): 2}, (1, 1): {(1, 1): 0, (1, 0): 1, (0, 1): 1, (1, 2): 1, (0, 0): 2, (0, 2): 2}, (0, 2): {(0, 2): 0, (0, 1): 1, (1, 2): 1, (0, 0): 2, (1, 0): 3, (1, 1): 2}, (1, 2): {(1, 2): 0, (1, 1): 1, (0, 2): 1, (0, 0): 3, (1, 0): 2, (0, 1): 2}}

如何将其转换为更具可读性的格式？例如，是否可以将所有可能的路径一一打印出来？我想要这样的输出：

[(0, 0), (1, 0)]
[(1, 0), (1, 1)]
[(0, 0), (1, 0), (1, 1)]
...
[(0, 0), (1, 0), (1, 1), (0, 1), (0, 2), (1, 2)]

或者，是否可以将它们打印为 JSON（或像这样）：

{(0, 0): 
   {(0, 0): 0, 
    (1, 0): 1, 
    (0, 1): 1, 
    (1, 1): 2, 
    (0, 2): 2, 
    (1, 2): 3},  
(1, 0): 
   {(1, 0): 0, 
    (0, 0): 1, 
    (1, 1): 1, 
    (0, 1): 2, 
    (0, 2): 3, 
    (1, 2): 2}, 

[......]

    (0, 1): 2}}

谢谢...

Answer 1

用于打印 Json:

import json


a = {(0, 0): {(0, 0): 0, (1, 0): 1, (0, 1): 1, (1, 1): 2, (0, 2): 2, (1, 2): 3}, (1, 0): {(1, 0): 0, (0, 0): 1, (1, 1): 1, (0, 1): 2, (0, 2): 3, (1, 2): 2}, (0, 1): {(0, 1): 0, (0, 0): 1, (1, 1): 1, (0, 2): 1, (1, 0): 2, (1, 2): 2}, (1, 1): {(1, 1): 0, (1, 0): 1, (0, 1): 1, (1, 2): 1, (0, 0): 2, (0, 2): 2}, (0, 2): {(0, 2): 0, (0, 1): 1, (1, 2): 1, (0, 0): 2, (1, 0): 3, (1, 1): 2}, (1, 2): {(1, 2): 0, (1, 1): 1, (0, 2): 1, (0, 0): 3, (1, 0): 2, (0, 1): 2}}


def dict_key_convert(dic):
    converted = {}
    for key, item in dic.items():
        if isinstance(item, dict):
            sub_dict = dict_key_convert(item)
            converted[str(key)] = sub_dict
        else:
            converted[str(key)] = item

    return converted


# print(json.dumps(dict_key_convert(a), indent=2))
with open('temp.json', 'w') as file:
    json.dump(dict_key_convert(a), file, indent=2)

Result

将字典元素打印为路径列表

Print dictionary elements as a list of paths

python

json

dictionary

networkx

floyd-warshall