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pydantic_lazy_model_with_deferred_field_evaluation.py

python

This quickstart demonstrates how to define a Pydantic model with lazy field e

15d ago23 linesskelof/lazy-model
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pydantic_lazy_model_with_deferred_field_evaluation.py
1from typing import List
2from lazy_model import LazyModel
3
4class User(LazyModel):
5    id: int
6    username: str
7    email: str
8    friends: List[int]
9
10# Data can be provided as a dictionary or a callable
11data = {
12    "id": 1,
13    "username": "john_doe",
14    "email": "john@example.com",
15    "friends": [2, 3, 4]
16}
17
18# The model is initialized, but fields are only parsed when accessed
19user = User(data)
20
21# Accessing a field triggers its parsing and validation
22print(user.username)  # john_doe
23print(user.friends)   # [2, 3, 4]