mirror of
https://github.com/kennethreitz/pydantic.git
synced 2026-06-05 23:00:18 +00:00
Samuel Colvin
20 lines
468 B
Python
20 lines
468 B
Python
from pydantic import BaseModel, PydanticValueError, ValidationError, validator
|
|
|
|
class NotABarError(PydanticValueError):
|
|
code = 'not_a_bar'
|
|
msg_template = 'value is not "bar", got "{wrong_value}"'
|
|
|
|
class Model(BaseModel):
|
|
foo: str
|
|
|
|
@validator('foo')
|
|
def name_must_contain_space(cls, v):
|
|
if v != 'bar':
|
|
raise NotABarError(wrong_value=v)
|
|
return v
|
|
|
|
try:
|
|
Model(foo='ber')
|
|
except ValidationError as e:
|
|
print(e.json())
|