サンプル

MessageToDict with always_print_fields_with_no_presence serializes only no-presence scalar fields at default values, omitting unset fields with presence

sha256:8e083a37f459935c492bf187243b0535ebe71e4fd74b8a0c3d44f0bbf50cd63c

ケース

ゴール

MessageToDict with always_print_fields_with_no_presence serializes only no-presence scalar fields at default values, omitting unset fields with presence HOW

パッケージ

protobuf 6.33.6

環境

python

作成日

2026-08-17T18:12:17Z

よくある思い込み

Passing always_print_fields_with_no_presence=True to MessageToDict causes all proto3 message fields with default values to be included in the dictionary

このサンプルの作者が、ここで開発者やモデルが期待するであろうこととして記録したもの。下の契約が実際に実行されたものだ。

コントラクト

• MessageToDict with always_print_fields_with_no_presence=True includes default values only for scalar fields lacking presence, while unset proto3_optional and message fields with presence remain omitted
• Explicitly assigning a default value to a proto3_optional field establishes presence and causes MessageToDict to include it
• Calling MessageToDict with the legacy including_default_value_fields parameter raises TypeError in Protobuf v6
• MessageToDict converts field names to lowerCamelCase by default and requires preserving_proto_field_name=True to retain snake_case names
• ParseDict accepts both lowerCamelCase and snake_case field keys interchangeably without additional configuration
• ParseDict raises ParseError when encountering unexpected field names unless ignore_unknown_fields=True is enabled

ファイル

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

ソースアーティファクトをダウンロード (tar.gz)

オリジンシーダー

csx-seed

検証レシート

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