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from typing import List

from pydantic import BaseModel, conint, ValidationError

class Location(BaseModel):

lat = 0.1

lng = 10.1

class Model(BaseModel):

is_required: float

gt_int: conint(gt=42)

list_of_ints: List[int] = None

a_float: float = None

recursive_model: Location = None

data = dict(

list_of_ints=["1", 2, "bad"],

a_float="not a float",

recursive_model={"lat": 4.2, "lng": "Beijing"},

gt_int=21,

)

try:

Model(**data)

except ValidationError as e:

print(e)

try:

Model(**data)

except ValidationError as e:

print(e.json())