Python 将两个列表转换为动态嵌套dict，然后转换为JSON

我必须浏览“颜色”列表：

对于每一项，我需要浏览每一项可能匹配的列表：

list2 = ["cherries","rasperries","guava","apple","watermelon","grapes","banana"]

如果list2项的条件良好，那么我需要创建一个dict，然后将输出写入JSON文件

for x in list1:
  print x
  for y in list2:
    if y == criteria:
      myDict = {'list1-item': 'fruit1':'apple'}

我的预期输出如下：

data = {'red': {'fruit1': 'cherries', 'fruit2': 'rasperries', 'fruit3': 'guava'},
      'green': {'fruit1': 'apple'},
      'other': {'fruit1': 'watermelon', 'fruit2': 'grapes', 'fruit3': 'banana'}}

写入JSON

with open("data_file.json", "w") as write_file:
    json.dump(data, write_file)

不太熟悉根据需要构建动态字典。

像这样吗

import pprint
from random import randint
list1 = ["red", "green", "other"]
list2 = ["cherries", "rasperries", "guava", "apple", "watermelon", "grapes", "banana"]


myDict = dict()
for x in list1:
    for y in list2:
        if 1 == randint(0, 1):
            l = len(myDict.get(x, []))
            if l == 0:
                myDict[x] = dict()
            myDict[x]['fruit{}'.format(l)] = y

pprint.pprint(myDict)

---

我不清楚你在问什么。这里有多个步骤，尝试单独解决每个步骤，如果遇到困难，请给出答案。到目前为止，您发布的内容在语法上是无效的。我同意@jornsharpe，我不明白列表2中的元素y与条件之间的关系是什么。我假设list2的元素有一些属性，可以对这些属性应用一些标准，但前面的想法只是一个猜测。

import pprint
from random import randint
list1 = ["red", "green", "other"]
list2 = ["cherries", "rasperries", "guava", "apple", "watermelon", "grapes", "banana"]


myDict = dict()
for x in list1:
    for y in list2:
        if 1 == randint(0, 1):
            l = len(myDict.get(x, []))
            if l == 0:
                myDict[x] = dict()
            myDict[x]['fruit{}'.format(l)] = y

pprint.pprint(myDict)