Question

我有一个具有特定输出格式的json文件。

{
    "courses": [
        {
            "professors": [
                {
                    "first_name": "Zvezdelina",
                    "last_name": "Stankova",
                    "professor_url": "http://www.ratemyprofessors.com/ShowRatings.jsp?tid=375269",
                    "helpfullness": 4.3,
                    "clarity": 4.3,
                    "overall_rating": 4.3
                }
            ],
            "course_name": "CHEM 1",
            "course_mentioned_times": 37
        },
        {
            "professors": [
                {
                    "first_name": "Alan",
                    "last_name": "Shabel",
                    "professor_url": "http://www.ratemyprofessors.com/ShowRatings.jsp?tid=1309831",
                    "helpfullness": 3.9,
                    "clarity": 3.5,
                    "overall_rating": 3.7
                }
            ],
            "course_name": "CHEMISTRY 5467",
            "course_mentioned_times": 32
        },
        {
            "professors": [
                {
                    "first_name": "Kurt",
                    "last_name": "Spreyer",
                    "professor_url": "http://www.ratemyprofessors.com/ShowRatings.jsp?tid=706268",
                    "helpfullness": 3.8,
                    "clarity": 3.6,
                    "overall_rating": 3.7
                }
            ],
            "course_name": "ESPM 50",
            "course_mentioned_times": 18
        },
        {
            "professors": [
                {
                    "first_name": "Kurt",
                    "last_name": "Spreyer",
                    "professor_url": "http://www.ratemyprofessors.com/ShowRatings.jsp?tid=706268",
                    "helpfullness": 3.8,
                    "clarity": 3.6,
                    "overall_rating": 3.7
                }
            ],
            "course_name": "ESPM 56",
            "course_mentioned_times": 17
        }
    ]
}

如输出中所示，我们总共有四个['course_name']。他们是'CHEM 1'，'CHEMISTRY 5467'，'ESPM 56'，'ESPM 50'，'course_tioned_times。所以我没有得到的是如何在我的json文件中查看我的所有courses_name键。例如，在这种情况下，从每个课程中提取MOST提到的课程。我只想要CHEM 1和它的属性，因为它比CHEMISTRY 5476明显多了56倍，我想要ESPM 50，因为它被提到18倍于ESPM 56，仅提到了17次。所以我希望我的输出有这两个类及其所有属性。比较应该通过跳过整数的第一个字母来完成，例如只有CHEM和CHEMISTRY，但是在我的输出中我想要全名而不仅仅是前缀。

Answer 1

以下代码段将使用提及次数最多的课程更新json文件：

import json

# Reading the json data from the source file = data.json
with open('data.json') as data_file:
    data = json.load(data_file)

temp_data = data
greater = []
len1 = len(data['courses'])
len2 = len1

for i in range(0,len1):
    for j in range(0, len2):
        if i==j:
            continue
        if data['courses'][i]['course_name'][0] == temp_data['courses'][j]['course_name'][0]:
            if data['courses'][i]['course_name'][1] == temp_data['courses'][j]['course_name'][1]:
                if data['courses'][i]['course_name'][2] == temp_data['courses'][j]['course_name'][2]:
                    if data['courses'][i]['course_mentioned_times']> temp_data['courses'][j]['course_mentioned_times']:
                        greater.append(i)
                    else:
                        greater.append(j)


final = []
for i in greater:
  if i not in final:
    final.append(i)

list_order = []

for i in range(0,len(data['courses'])):
    list_order.append(i)

new_final = []
for i in list_order:
    if i not in final:
        new_final.append(i)

for i in new_final:
    if i!=new_final[0]:
        i=i-1
    data['courses'].pop(i)

# Writing the new json data back to data.json file.
with open('data.json', 'w') as f:
    json.dump(data, f)

运行我的解决方案后提供的示例数据的输出如下所示：

{
  "courses": [
    {
      "professors": [
        {
          "first_name": "Zvezdelina",
          "last_name": "Stankova",
          "professor_url": "http://www.ratemyprofessors.com/ShowRatings.jsp?tid=375269",
          "helpfullness": 4.3,
          "clarity": 4.3,
          "overall_rating": 4.3
        }
      ],
      "course_name": "CHEM 1",
      "course_mentioned_times": 37
    },
    {
      "professors": [
        {
          "first_name": "Kurt",
          "last_name": "Spreyer",
          "professor_url": "http://www.ratemyprofessors.com/ShowRatings.jsp?tid=706268",
          "helpfullness": 3.8,
          "clarity": 3.6,
          "overall_rating": 3.7
        }
      ],
      "course_name": "ESPM 50",
      "course_mentioned_times": 18
    }
  ]
}

需要帮助将字典中的相似值排序为一个

1 个答案: