# Pastebin KVZzP7EV
listdict1 = [{"name": "name1", "surname": "surname1"},{"name": "name2", "surname": "surname2"}]
listdict2 = [{"name": "name1", "middlename": "middlename1"},{"name": "name2", "middlename": "middlename2"}]

Merge: [{"name": "name1", "surname": "surname1", "middlename": "middlename1"},{"name": "name2", "surname": "surname2","middlename": "middlename2" }]