Dadas dos listas de diccionarios, la tarea es fusionar estas dos listas de diccionarios en función de algún valor.
Método n.º 1: Usar defaultdict y extend para fusionar dos listas de diccionarios según school_id .
# Python code to merge two list of dictionaries
# based on some value.
from collections import defaultdict
# List initialization
Input1 = [{'roll_no': ['123445', '1212'], 'school_id': 1},
{'roll_no': ['HA-4848231'], 'school_id': 2}]
Input2 = [{'roll_no': ['473427'], 'school_id': 2},
{'roll_no': ['092112'], 'school_id': 5}]
# Using defaultdict
temp = defaultdict(list)
# Using extend
for elem in Input1:
temp[elem['school_id']].extend(elem['roll_no'])
for elem in Input2:
temp[elem['school_id']].extend(elem['roll_no'])
Output = [{"roll_no":y, "school_id":x} for x, y in temp.items()]
# printing
print(Output)
Producción:
[{‘school_id’: 1, ‘roll_no’: [‘123445’, ‘1212’]}, {‘school_id’: 2, ‘roll_no’: [‘HA-4848231’, ‘473427’]}, {‘school_id ‘: 5, ‘roll_no’: [‘092112’]}]
Método #2: Usando extend()solamente.
# Python code to merge two list of dictionaries
# based on some value.
# List initialization
Input1 = [{'roll_no': ['123445', '1212'], 'school_id': 1},
{'roll_no': ['HA-4848231'], 'school_id': 2}]
Input2 = [{'roll_no': ['473427'], 'school_id': 2},
{'roll_no': ['092112'], 'school_id': 5}]
# Iterating and using extend to convert
for elm2 in Input2:
for elm1 in Input1:
if elm2['school_id'] == elm1['school_id']:
elm1['roll_no'].extend(elm2['roll_no'])
break
else:
Input1.append(elm2)
# printing
print(Input1)
Producción:
[{‘school_id’: 1, ‘roll_no’: [‘123445’, ‘1212’]}, {‘school_id’: 2, ‘roll_no’: [‘HA-4848231’, ‘473427’]}, {‘school_id ‘: 5, ‘roll_no’: [‘092112’]}]
Publicación traducida automáticamente
Artículo escrito por everythingispossible y traducido por Barcelona Geeks. The original can be accessed here. Licence: CCBY-SA