Dado un diccionario, la tarea es cambiar la clave según el requisito. Veamos diferentes métodos con los que podemos hacer esta tarea.
Método #1: Usar un método ingenuo
Python3
# Python code to demonstrate
# changing keys of dictionary
# using naive method
# inititialising dictionary
ini_dict = {'nikhil': 1, 'vashu' : 5,
'manjeet' : 10, 'akshat' : 15}
# printing initial json
print ("initial 1st dictionary", ini_dict)
# changing keys of dictionary
ini_dict['akash'] = ini_dict['akshat']
del ini_dict['akshat']
# printing final result
print ("final dictionary", str(ini_dict))
Producción
initial 1st dictionary {'nikhil': 1, 'vashu': 5, 'manjeet': 10, 'akshat': 15}
final dictionary {'nikhil': 1, 'vashu': 5, 'manjeet': 10, 'akash': 15}
Método #2: Usar pop()
Python3
# Python code to demonstrate
# changing keys of dictionary
# using pop() method
# inititialising dictionary
ini_dict = {'nikhil': 1, 'vashu' : 5,
'manjeet' : 10, 'akshat' : 15}
# printing initial json
print ("initial 1st dictionary", ini_dict)
# changing keys of dictionary
ini_dict['akash'] = ini_dict.pop('akshat')
# printing final result
print ("final dictionary", str(ini_dict))
Producción
initial 1st dictionary {'nikhil': 1, 'vashu': 5, 'manjeet': 10, 'akshat': 15}
final dictionary {'nikhil': 1, 'vashu': 5, 'manjeet': 10, 'akash': 15}
Método #3: Usar zip() Supongamos que queremos cambiar todas las claves del diccionario.
Python3
# Python code to demonstrate
# changing all keys of dictionary
# corresponding to list using zip()
# inititialising dictionary
ini_dict = {'nikhil': 1, 'vashu' : 5,
'manjeet' : 10, 'akshat' : 15}
# initialising list
ini_list = ['a', 'b', 'c', 'd']
# printing initial json
print ("initial 1st dictionary", ini_dict)
# changing keys of dictionary
final_dict = dict(zip(ini_list, list(ini_dict.values())))
# printing final result
print ("final dictionary", str(final_dict))
Producción
initial 1st dictionary {'nikhil': 1, 'vashu': 5, 'manjeet': 10, 'akshat': 15}
final dictionary {'a': 1, 'b': 5, 'c': 10, 'd': 15}
Publicación traducida automáticamente
Artículo escrito por garg_ak0109 y traducido por Barcelona Geeks. The original can be accessed here. Licence: CCBY-SA