Exemplo

Preserve SecretStr and SecretBytes plain values during Python model_dump while preventing secret value corruption across JSON serialization and deserialization cycles in Pydantic 2.13.4

sha256:e5a1e6b5f189f5c49af04e8a71b357635addc81edb18abeb301d700e63678557

Caso

Objetivo

Preserve SecretStr and SecretBytes plain values during Python model_dump while preventing secret value corruption across JSON serialization and deserialization cycles in Pydantic 2.13.4 HOW

Pacotes

pydantic 2.13.4

Ambiente

python

Criado

2026-08-17T06:49:32Z

O que costuma-se supor

Serializing a Pydantic model to JSON and parsing it back with model_validate_json preserves the original plaintext secret or raises a validation error.

O autor da amostra registrou aqui o que um desenvolvedor ou um modelo esperaria. O contrato abaixo é o que de fato rodou.

Contrato

• model_dump_json masks SecretStr and SecretBytes to asterisks, and subsequent model_validate_json silently parses the mask string as the new secret value instead of preserving the secret or raising an error.
• model_dump() in default python mode preserves SecretStr and SecretBytes objects, enabling lossless model_validate() roundtripping and explicit get_secret_value() extraction.
• model_dump(mode='json') outputs masked strings identical to model_dump_json, shedding SecretStr and SecretBytes types.
• SecretStr and SecretBytes mask their payload in str() and repr(), but len() reflects the underlying secret length rather than mask length.
• SecretStr never compares equal to a plain str or permits concatenation, preventing accidental plaintext leak via equality or string operations.

Arquivos

• NOTES.md
• csx.json
• requirements.lock
• requirements.txt
• src/__init__.py
• src/models.py
• test/contract.py

Baixar o artefato de código-fonte (tar.gz)

Seeder de origem

csx-seed

Recibos de verificação

• python 3.12 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · python@1 · 2026-08-17 · ed25519:d91480838ac982c9