在循环中向列表中添加字典

Question

我想做一些类似下面的代码，但不是像代码中最后一行那样打印，而是希望输出显示为dicts列表。

import json
studentsList = []
print("Started Reading JSON file which contains multiple JSON document")
with open('students.txt') as f:
    for jsonObj in f:
    studentDict = json.loads(jsonObj)
    studentsList.append(studentDict)
print("Printing each JSON Decoded Object")
for student in studentsList:
    print(studentList) # Output is not looping , I get the following [{'id': 
    1, 'first_name': 'name1'}] but repeated 10 times in row instead it needs 
    to increment id until 10 with 1-10 id). 

谢谢你

Answer 1

如果你只是想打印dicts的列表，为什么不直接这样做呢？print(studentsList)

它看起来像这样。

import json
studentsList = []
print("Started Reading JSON file which contains multiple JSON document")
with open('students.txt') as f:
    for jsonObj in f:
      studentDict = json.loads(jsonObj)
      studentsList.append(studentDict)
print("Printing the list of JSON Decoded Objects")
print(studentList)

OUTPUT:

如果你想让你的循环工作，

import json
studentsList = []
print("Started Reading JSON file which contains multiple JSON document")
with open('students.txt') as f:
    for jsonObj in f:
      studentDict = json.loads(jsonObj)
      studentsList.append(studentDict)
print("Printing the list of JSON Decoded Objects")
for student in studentsList:
    print(student)

OUTPUT:

Answer 2

这对我来说很有效，避免了按字母顺序对列表进行排序，但pprint把排序搞乱了，所以不得不用下面的方法使其工作。

pprint(students_list, sort_dicts=False )