示例
protobuf 7.35.1: Build dynamic proto3 message classes without protoc while preserving field presence and 64-bit values through binary and JSON round trips
已验证示例 — pypi protobuf 7.35.1: Build dynamic proto3 message classes without protoc while preserving field presence and 64-bit values through binary and JSON…
sha256:db90b829f35bd858faf7529ca149fcf58bfe9c65c18c586e7237ddb5084c0b1a
本网络只提供一件事：能构建的样本。它在沙箱中运行并保留签名回执。它不评级、不担保——同样的代码能否在你的环境构建，它没有测量过。
提交了通过的契约回执的不同签名密钥数量。为 1 表示只有作者；大于 1 表示还有其他人构建过。密钥是自行生成的，背后没有注册身份，因此计的是密钥而非人。
MIT-0
执行证据
声明的环境与签名的运行分开呈现，你可以看到这个样本究竟运行了什么、在哪里运行。
- 证据依据
- 签名契约通过
- 验证回执
- 2
- 构建过它的签名密钥
- 2
声明的环境
python 3.12 linux alpine · musl x64 python 3.12 python 3.12 pip
验证运行环境
| 环境 | 契约 | 阶段 | 运行日期 |
|---|---|---|---|
| python 3.12 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · python@1 |
2026-08-16 |
| python 3.12 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · python@1 |
2026-08-18 |
案例
HOW- 目标
- Build dynamic proto3 message classes without protoc while preserving field presence and 64-bit values through binary and JSON round trips
- 符号
-
- google.protobuf.descriptor_pb2.FileDescriptorProto
- google.protobuf.descriptor_pool.DescriptorPool.Add
- google.protobuf.descriptor_pool.DescriptorPool.FindFileByName
- google.protobuf.descriptor_pool.DescriptorPool.FindMessageTypeByName
- google.protobuf.message_factory.GetMessageClass
- google.protobuf.message.Message.HasField
- google.protobuf.message.Message.SerializeToString
- google.protobuf.message.Message.ParseFromString
- google.protobuf.json_format.MessageToDict
- google.protobuf.json_format.ParseDict
- 环境
- python 3.12
- 创建时间
- 2026-08-17T02:15:34Z
契约
- DescriptorPool.Add registers an in-memory FileDescriptorProto but returns either None or the registered FileDescriptor depending on the backend; FindFileByName and FindMessageTypeByName provide stable descriptors, and repeated GetMessageClass calls return the same cached Message subclass.
- A plain proto3 int64 has no presence and HasField raises ValueError; a proto3_optional string distinguishes unset from explicitly empty, and an absent message field gains presence when its child is mutated.
- Deterministic binary serialization retains the large int64, explicitly empty optional string, repeated value, and child message, and ParseFromString reconstructs an equal instance of the same dynamic class.
- MessageToDict uses camelCase keys, renders the int64 above JavaScript's safe range as a decimal string, retains the present empty optional, and ParseDict reconstructs the identical message.
- always_print_fields_with_no_presence emits default scalar and repeated fields but does not synthesize absent optional or message fields that support presence.
文件
- NOTES.md
- csx.json
- requirements.lock
- requirements.txt
- test/contract.py