[FIXED] remove duplicates from value of dicts of list

Issue

I have a list like this:

list = [{"name": "name1", "zipcode": "zipcode1", "id": "id1"},{"name": "name2", "zipcode": "zipcode2", "id": "id2"}, {"name": "name1", "zipcode": "zipcode3", "id": "id1"}]

I want to remove dicts which has same ids. I know how to remove duplicates but notice they are not duplicates, they have different zipcodes.

I expect this:

list2 = [{"name": "name1", "zipcode": "zipcode1", "id": "id1"},{"name": "name2", "zipcode": "zipcode2", "id": "id2"}

Solution

Try this in one line:

list1 = [{"name": "name1", "zipcode": "zipcode1", "id": "id1"},{"name": "name2", "zipcode": "zipcode2", "id": "id2"}, {"name": "name1", "zipcode": "zipcode3", "id": "id1"}]

list({i["name"]: i for i in list1}.values())

This is a little tricky, the point is that dictionaries can not have a same key twice. by making the name as a dictionary key and the rest as values.

By getting the values again. you will achieve what you want.

One more thing:

DO NOT use list as a variable name. list is predefined in python and you will override its own functionality bu doing this. some of common mistakes as a variable name are : list, dict, set, input, ...

Answered By - Mehrdad Pedramfar