在 Python 中比较和更新包含具有唯一键的字典的两个列表

Question

I have two lists, both contain dictionaries.I want to compare list_1 with list_2,

1. If any values changes in the list_1 according to list_2 we can update that values to list_2.
2. While comparing both lists, if new dictionary is found on list_1 we can add that dict to list_2.
3. While comparing both lists, if a dict is missing in list_1 according to list_2, we can delete that dict from list_2 also.

list_1

list_1 = [{'unique_id': 'ABC001', 'key_1': 'Apple_New', 'price': 100.00}, {'unique_id': 'ABC003', 'key_3': 'Grapes', 'price': 80.00]

list_2

list_2 = [{'unique_id': 'ABC001', 'key_1': 'Apple', 'price': 80.00}, {'unique_id': 'ABC002', 'key_2': 'Orange', 'price': 70.00}] 

Expected Result

list_2 = [{'unique_id': 'ABC001', 'key_1': 'Apple_New', 'price': 100.00}, {'unique_id': 'ABC003', 'key_3': 'Grapes', 'price': 80.00}]

Answer 1

There doesn't seem to be any difference between your list_1 and what you posted as the expected result.

list_1 = [{'unique_id': 'ABC001', 'key_1': 'Apple_New', 'price': 100.00}, {'unique_id': 'ABC003', 'key_3': 'Grapes', 'price': 80.00}]

list_2 = [{'unique_id': 'ABC001', 'key_1': 'Apple', 'price': 80.00}, {'unique_id': 'ABC002', 'key_2': 'Orange', 'price': 70.00}]
expected_result = [{'unique_id': 'ABC001', 'key_1': 'Apple_New', 'price': 100.00}, {'unique_id': 'ABC003', 'key_3': 'Grapes', 'price': 80.00}]

list_1 == expected_result  # True