How to parse list of models with Pydantic

Question

I use Pydantic to model the requests and responses to an API.

I defined a User class:

from pydantic import BaseModel

class User(BaseModel):
  name: str
  age: int

My API returns a list of users which I retrieve with requests and convert into a dict:

users = [{"name": "user1", "age": 15}, {"name": "user2", "age": 28}]

How can I convert this dict to a list of User instances?

My solution for now is

user_list = []
for user in users:
  user_list.append(User(**user))

Answer 1

Pydantic V1:

This is now possible using parse_obj_as.

from pydantic import parse_obj_as

users = [
    {"name": "user1", "age": 15}, 
    {"name": "user2", "age": 28}
]

m = parse_obj_as(List[User], users)

Pydantic V2:

Use Type Adapter.

from pydantic import TypeAdapter

users = [
    {"name": "user1", "age": 15}, 
    {"name": "user2", "age": 28}
]

ta = TypeAdapter(List[User])
m = ta.validate_python(users)