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Python save dictionary to json

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  1. How to save a dictionary in a json file with python ?
  2. Prettify the json file
  3. Sort the json file
  4. References
  5. Benjamin
  6. Save Dictionary to JSON in Python
  7. Save Dictionary to JSON Using the pickle.dump() Method in Python
  8. Save Dictionary to JSON Using the json.dump() Method in Python
  9. Related Article - Python Dictionary
  10. Related Article - Python JSON
  11. How to save a dictionary in a json file with python ?
  12. Prettify the json file
  13. Sort the json file
  14. References
  15. Benjamin
  16. Преобразование словаря (dict) в JSON в Python
  17. Пример 1: как сделать из словаря Json
  18. Пример 2
  19. Пример 3

How to save a dictionary in a json file with python ?

To save a dictionary in python to a json file, a solution is to use the json function dump(), example:

import json dict = , "member #003":, "member #001":> with open('data.json', 'w') as fp: json.dump(dict, fp)

the above script will then create the following json file called here ‘data.json’:

Prettify the json file

To prettify the json file and to .make it more readable, a solution is to use the option indent in the function dump(), example:

import json dict = , "member #003":, "member #001":> with open('data.json', 'w') as fp: json.dump(dict, fp, indent=4) 
  "member #002":  "first name": "John", "last name": "Doe", "age": 34 >, "member #003":  "first name": "Elijah", "last name": "Baley", "age": 27 >, "member #001":  "first name": "Jane", "last name": "Doe", "age": 42 > >

Sort the json file

With the option sort_keys=True it is also possible to sort the json file:

import json dict = , "member #003":, "member #001":> with open('data.json', 'w') as fp: json.dump(dict, fp, sort_keys=True, indent=4) 
  "member #001":  "age": 42, "first name": "Jane", "last name": "Doe" >, "member #002":  "age": 34, "first name": "John", "last name": "Doe" >, "member #003":  "age": 27, "first name": "Elijah", "last name": "Baley" > >

References

Links Site
json.dump docs.python.org
Storing Python dictionaries stackoverflow
Reading and Writing JSON to a File in Python stackabuse
Python dump dict to json file stackoverflow
JSON encoder and decoder docs.python.org
pickle — Python object serialization docs.python.org
marshal — Internal Python object serialization docs.python.org

Benjamin

Greetings, I am Ben! I completed my PhD in Atmospheric Science from the University of Lille, France. Subsequently, for 12 years I was employed at NASA as a Research Scientist focusing on Earth remote sensing. Presently, I work with NOAA concentrating on satellite-based Active Fire detection. Python, Machine Learning and Open Science are special areas of interest to me.

Skills

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Save Dictionary to JSON in Python

Save Dictionary to JSON in Python

  1. Save Dictionary to JSON Using the pickle.dump() Method in Python
  2. Save Dictionary to JSON Using the json.dump() Method in Python

This tutorial will explain various methods to save a dictionary as a JSON file in Python. The JSON format is a prevalent lightweight file format; it is primarily used to store and transfer data between web servers and applications. It is a complete language-independent file format and is easy to understand for a human.

Save Dictionary to JSON Using the pickle.dump() Method in Python

The dump(obj, file, ..) method of the pickle module writes the data object obj to the opened file object file . To save the dictionary to JSON format, we will need the file object of the .json file and the dictionary that we need to save and pass them to the dump() method.

We can also load the saved dictionary from the .json file using the load() method of the pickle library. The pickle.load(file, ..) method reads the file and returns the object of data type used to save the data, like a dictionary, list or set, etc.

The example code below demonstrates how to save dictionary as JSON file in Python using the dump() method:

import pickle  my_dict = < 'Ali': 9, 'Sid': 1, 'Luna': 7, 'Sim': 12, 'Pooja': 4, 'Jen': 2> with open('data.json', 'wb') as fp:  pickle.dump(my_dict, fp)  with open('data.json', 'rb') as fp:  data = pickle.load(fp) print(data) print(type(data))

Save Dictionary to JSON Using the json.dump() Method in Python

The dump(obj, file, ..) method of the json module also writes the data object obj to the open file object file . And the load(file, ..) method of the json module also reads the file and returns the object of the data type using which data was saved. In our case, it will be a dictionary.

As explained above, to save the dictionary as a JSON file, we will need the opened file object of the .json file to save the dictionary data into it. It is also needed to load the data from the .json file.

The code example below demonstrates how to save and load the dictionary to JSON file in Python using the json.dump() and json.load() methods:

import json  my_dict = < 'Ali': 9, 'Sid': 1, 'Luna': 7, 'Sim': 12, 'Pooja': 4, 'Jen': 2> with open('data.json', 'w') as fp:  json.dump(my_dict, fp)  with open('data.json', 'r') as fp:  data = json.load(fp) print(data) print(type(data))

The main difference between the pickle and json methods, as shown in the above code example, is that pickle methods require file objects in binary mode to read and write, and json methods require file objects in simple read and write mode.

Related Article - Python Dictionary

Related Article - Python JSON

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How to save a dictionary in a json file with python ?

To save a dictionary in python to a json file, a solution is to use the json function dump(), example:

import json dict = , "member #003":, "member #001":> with open('data.json', 'w') as fp: json.dump(dict, fp)

the above script will then create the following json file called here 'data.json':

Prettify the json file

To prettify the json file and to .make it more readable, a solution is to use the option indent in the function dump(), example:

import json dict = , "member #003":, "member #001":> with open('data.json', 'w') as fp: json.dump(dict, fp, indent=4) 
  "member #002":  "first name": "John", "last name": "Doe", "age": 34 >, "member #003":  "first name": "Elijah", "last name": "Baley", "age": 27 >, "member #001":  "first name": "Jane", "last name": "Doe", "age": 42 > >

Sort the json file

With the option sort_keys=True it is also possible to sort the json file:

import json dict = , "member #003":, "member #001":> with open('data.json', 'w') as fp: json.dump(dict, fp, sort_keys=True, indent=4) 
  "member #001":  "age": 42, "first name": "Jane", "last name": "Doe" >, "member #002":  "age": 34, "first name": "John", "last name": "Doe" >, "member #003":  "age": 27, "first name": "Elijah", "last name": "Baley" > >

References

Links Site
json.dump docs.python.org
Storing Python dictionaries stackoverflow
Reading and Writing JSON to a File in Python stackabuse
Python dump dict to json file stackoverflow
JSON encoder and decoder docs.python.org
pickle — Python object serialization docs.python.org
marshal — Internal Python object serialization docs.python.org

Benjamin

Greetings, I am Ben! I completed my PhD in Atmospheric Science from the University of Lille, France. Subsequently, for 12 years I was employed at NASA as a Research Scientist focusing on Earth remote sensing. Presently, I work with NOAA concentrating on satellite-based Active Fire detection. Python, Machine Learning and Open Science are special areas of interest to me.

Skills

Источник

Преобразование словаря (dict) в JSON в Python

Чтобы преобразовать словарь (dict) в json в Python, вы можете использовать метод json.dumps() из модуля json. Чтобы работать с любыми операциями, связанными с json, в Python, импортируйте модуль json.

Пример 1: как сделать из словаря Json

Итак, мы определили один словарь, а затем преобразовали этот словарь в JSON с помощью метода json.dumps().

Как преобразовать словарь Python в JSON с примером

Пример 2

Чтобы отсортировать ключи, используйте sort_keys в качестве второго аргумента для json_dumps().

Пример 2

json.dumps() возвращает строковое представление JSON для python dict.

Пример 3

Чтобы записать данные JSON в файл на Python, используйте метод json.dump(). json.dump() — это встроенный метод, который преобразует объекты в подходящие объекты json.

В приведенной выше программе мы открыли файл с именем person.txt в режиме записи, используя «w». Если файл еще не существует, он будет создан. Затем json_dump() преобразует personDict в строку JSON, сохраненную в файле person.txt.

Файл person.txt создается при запуске приведенного выше кода и записывается строка json внутри этого файла.

Автор статей и разработчик, делюсь знаниями.

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