Python: convierte la lista de diccionarios a JSON

En este artículo, discutiremos cómo convertir una lista de diccionarios a JSON en python

Método 1: Usar json.dumps()

Esta función convertirá una lista de diccionarios a JSON.

Sintaxis:

json.dumps(dict, indent)

Parámetros:  

• diccionario: nombre de un diccionario que debe convertirse en un objeto JSON.
• sangría – define el número de unidades para la sangría

Ejemplo: programa Python para crear una lista de diccionarios de datos de empleados y convertir a JSON

# import json module
import json
  
# list of dictionaries of employee data
data = [{"id": ("1", "2", "3"), "name": ("bhanu", "sivanagulu"), 
         "department": ("HR", "IT")},
        {"id": ("4", "5", "6"), "name": ("sai", "poori"),
         "department": ("HR", "IT")},
        {"id": ("7", "8", "9"), "name": ("teja", "gowtam"),
         "department": ("finance", "IT")},
        {"id": ("10", "11", "12"), "name": ("sai", "jyothi"),
         "department": ("business", "IT")},
        {"id": ("13", "14", "15"), "name": ("prudhvi", "nagendram"),
         "department": ("business", "IT")}]
  
  
# convert into json
final = json.dumps(data, indent=2)
  
# display
print(final)

Salida :

[
  {
    "id": [
      "1",
      "2",
      "3"
    ],
    "name": [
      "bhanu",
      "sivanagulu"
    ],
    "department": [
      "HR",
      "IT"
    ]
  },
  {
    "id": [
      "4",
      "5",
      "6"
    ],
    "name": [
      "sai",
      "poori"
    ],
    "department": [
      "HR",
      "IT"
    ]
  },
  {
    "id": [
      "7",
      "8",
      "9"
    ],
    "name": [
      "teja",
      "gowtam"
    ],
    "department": [
      "finance",
      "IT"
    ]
  },
  {
    "id": [
      "10",
      "11",
      "12"
    ],
    "name": [
      "sai",
      "jyothi"
    ],
    "department": [
      "business",
      "IT"
    ]
  },
  {
    "id": [
      "13",
      "14",
      "15"
    ],
    "name": [
      "prudhvi",
      "nagendram"
    ],
    "department": [
      "business",
      "IT"
    ]
  }
]

Método 2: Usar json.dump()

Esto escribirá los datos JSON convertidos en un archivo.

Sintaxis:

json.dump(dict, file_pointer)

Parámetros:  

• diccionario: el nombre del diccionario que debe convertirse en objeto JSON.
• Puntero de archivo: puntero del archivo abierto en modo escribir o agregar.

Sintaxis:

with open("mydata.json", "w") as final:
   json.dump(data, final)

donde mydata es el nuevo archivo JSON. Finalmente, tenemos que descargar el archivo JSON creado.

Sintaxis:

files.download('mydata.json')

Ejemplo:

# import json module
from google.colab import files
import json
  
# list of dictionaries of employee data
data = [{"id": ("1", "2", "3"), "name": ("bhanu", "sivanagulu"),
         "department": ("HR", "IT")},
        {"id": ("4", "5", "6"), "name": ("sai", "poori"),
         "department": ("HR", "IT")},
        {"id": ("7", "8", "9"), "name": ("teja", "gowtam"),
         "department": ("finance", "IT")},
        {"id": ("10", "11", "12"), "name": ("sai", "jyothi"),
         "department": ("business", "IT")},
        {"id": ("13", "14", "15"), "name": ("prudhvi", "nagendram"),
         "department": ("business", "IT")}]
  
  
# convert into json
# file name is mydata
with open("mydata.json", "w") as final:
    json.dump(data, final)
  
# download the json file
files.download('mydata.json')

Producción:

[{“id”: [“1”, “2”, “3”], “nombre”: [“bhanu”, “sivanagulu”], “departamento”: [“HR”, “IT”]}, { “id”: [“4”, “5”, “6”], “nombre”: [“sai”, “poori”], “departamento”: [“HR”, “IT”]}, {“id ”: [“7”, “8”, “9”], “nombre”: [“teja”, “gowtam”], “departamento”: [“finanzas”, “TI”]}, {“id”: [“10”, “11”, “12”], “nombre”: [“sai”, “jyothi”], “departamento”: [“negocio”, “TI”]}, {“id”: [“ 13”, “14”, “15”], “nombre”: [“prudhvi”, “nagendram”], “departamento”: [“negocio”, “TI”]}]