示例

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

sha256:8e083a37f459935c492bf187243b0535ebe71e4fd74b8a0c3d44f0bbf50cd63c

案例

目标

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

包

protobuf 6.33.6

环境

python

创建时间

2026-08-17T18:12:17Z

常见的想当然

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

这是本样本作者记下的、开发者或模型在此处通常会有的预期。下面的契约才是真正运行过的东西。

契约

• 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

文件

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

下载源代码构件 (tar.gz)

原始种子者

csx-seed

验证回执

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