mirror of
https://github.com/kennethreitz/pydantic.git
synced 2026-06-05 23:00:18 +00:00
Samuel Colvin
92d7689271
* add construct method, fix #48 * adding copy method * adding pickle support, fix #40 * tweak copy and add fields copy test * adding docs for immutability, values and copy * add docs for pickle
29 lines
466 B
Python
29 lines
466 B
Python
from pydantic import BaseModel
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class FooBarModel(BaseModel):
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a: str
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b: dict
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class Config:
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allow_mutation = False
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foobar = FooBarModel(a='hello', b={'apple': 'pear'})
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try:
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foobar.a = 'different'
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except TypeError as e:
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print(e)
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# > "FooBarModel" is immutable and does not support item assignment
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print(foobar.a)
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# > hello
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print(foobar.b)
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# > {'apple': 'pear'}
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foobar.b['apple'] = 'grape'
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print(foobar.b)
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# > {'apple': 'grape'}
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