Dada una lista de diccionarios, la tarea es ordenar el diccionario por fecha. Veamos algunos métodos para resolver la tarea.
Método #1: Usar un enfoque ingenuo
# Python code to demonstrate
# sort a list of dictionary
# where value date is in string
# Initialising list of dictionary
ini_list = [{'name':'akash', 'd.o.b':'1997-03-02'},
{'name':'manjeet', 'd.o.b':'1997-01-04'},
{'name':'nikhil', 'd.o.b':'1997-09-13'}]
# printing initial list
print ("initial list : ", str(ini_list))
# code to sort list on date
ini_list.sort(key = lambda x:x['d.o.b'])
# printing final list
print ("result", str(ini_list))
lista inicial: [{‘name’: ‘akash’, ‘dob’: ‘1997-03-02’}, {‘name’: ‘manjeet’, ‘dob’: ‘1997-01-04’}, {‘ nombre’: ‘nikhil’, ‘dob’: ‘1997-09-13’}]
resultado [{‘nombre’: ‘manjeet’, ‘dob’: ‘1997-01-04’}, {‘nombre’: ‘akash’, ‘dob’: ‘1997-03-02’}, {‘nombre’ : ‘nikhil’, ‘dob’: ‘1997-09-13’}]
Método #2: Usar datetime.strptimeylambda
# Python code to demonstrate
# sort a list of dictionary
# where value date is in a string
from datetime import datetime
# Initialising list of dictionary
ini_list = [{'name':'akshat', 'd.o.b':'1997-09-01'},
{'name':'vashu', 'd.o.b':'1997-08-19'},
{'name':'manjeet', 'd.o.b':'1997-01-04'},
{'name':'nikhil', 'd.o.b':'1997-09-13'}]
# printing initial list
print ("initial list : ", str(ini_list))
# code to sort list on date
ini_list.sort(key = lambda x: datetime.strptime(x['d.o.b'], '%Y-%m-%d'))
# printing final list
print ("result", str(ini_list))
lista inicial: [{‘dob’: ‘1997-09-01’, ‘name’: ‘akshat’}, {‘dob’: ‘1997-08-19’, ‘name’: ‘vashu’}, {‘ fecha de nacimiento’: ‘1997-01-04’, ‘nombre’: ‘manjeet’}, {‘fecha de nacimiento’: ‘1997-09-13’, ‘nombre’: ‘nikhil’}]
resultado [{‘dob’: ‘1997-01-04’, ‘name’: ‘manjeet’}, {‘dob’: ‘1997-08-19’, ‘name’: ‘vashu’}, {‘dob’ : ‘1997-09-01’, ‘nombre’: ‘akshat’}, {‘dob’: ‘1997-09-13’, ‘nombre’: ‘nikhil’}]
Método #3: Usaroperator.itemgetter
# Python code to demonstrate
# sort a list of dictionary
# where value date is in string
import operator
# Initialising list of dictionary
ini_list = [{'name':'akash', 'd.o.b':'1997-03-02'},
{'name':'manjeet', 'd.o.b':'1997-01-04'},
{'name':'nikhil', 'd.o.b':'1997-09-13'}]
# printing initial list
print ("initial list : ", str(ini_list))
# code to sort list on date
ini_list.sort(key = operator.itemgetter('d.o.b'))
# printing final list
print ("result", str(ini_list))
lista inicial: [{‘dob’: ‘1997-03-02’, ‘name’: ‘akash’}, {‘dob’: ‘1997-01-04’, ‘name’: ‘manjeet’}, {‘ fecha de nacimiento’: ‘1997-09-13’, ‘nombre’: ‘nikhil’}]
resultado [{‘dob’: ‘1997-01-04’, ‘name’: ‘manjeet’}, {‘dob’: ‘1997-03-02’, ‘name’: ‘akash’}, {‘dob’ : ‘1997-09-13’, ‘nombre’: ‘nikhil’}]
Publicación traducida automáticamente
Artículo escrito por garg_ak0109 y traducido por Barcelona Geeks. The original can be accessed here. Licence: CCBY-SA