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Error when calling to_pydict on a message having a repeated timestamp field

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评估

难度
3/5
预计耗时
1-2 天
新手友好度
35/100
Issue 类型
缺陷
描述清晰度
基本清楚
活跃度
停滞
技术栈
python
领域
api, backend

调研方向

使用提供的 Msg 定义和 datetime 值复现该问题,然后跟踪处理 repeated fields 和 google.protobuf.Timestamp 值的 to_pydict 转换路径。当 to_pydict 在没有 AttributeError 的情况下完成,并返回预期的 repeated timestamp 表示形式且与正常工作的 to_dict 行为一致时,即视为完成。

由索引模型根据 Issue 内容生成。

描述

bug investigation needed

When calling the to_pydict method on a message which has a repeated timestamp field, an AttributeError is raised.

Reproduction Steps

Compile the following message :

message Msg {
    repeated google.protobuf.Timestamp ts = 1;
}

Then, execute the following code:

from datetime import datetime

msg = Msg(ts=[datetime(2015, 3, 5)])

print(msg.to_dict())
print(msg.to_pydict())
Expected Results

In this situation, it is expected for the two calls to work without error.

Actual Results

The call to to_dict works as expected: it prints {'ts': ['2015-03-05T00:00:00Z']}. However, the call to to_pydict fails with the error: AttributeError: 'datetime.datetime' object has no attribute 'to_pydict'.

It is possible to simply fix this bug (and the related bugs) by patching the to_pydict function, but it might be easier with a bit of refactoring first. I will probably be able to work on this once my other PRs are approved.

System Information

libprotoc 3.12.4
Python 3.12.5
Name: betterproto
Version: 2.0.0b7
Summary: A better Protobuf / gRPC generator & library
Home-page: https://github.com/danielgtaylor/python-betterproto
Author: Daniel G. Taylor
Author-email: [email protected]
License: MIT
Location: XXX/.venv/lib/python3.12/site-packages
Requires: grpclib, python-dateutil, typing-extensions
Required-by: pygrpc-poc

Checklist
  • I have searched the issues for duplicates.
  • I have shown the entire traceback, if possible.
  • I have verified this issue occurs on the latest prelease of betterproto which can be installed using pip install -U --pre betterproto, if possible.
主要语言
Python
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PR 合并指标
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环境准备

从这里开始

  1. 先读完整个 Issue,再读项目的贡献指南。
  2. 在 Issue 下留言说明你要接手 —— 这能避免两个人做同样的事。
  3. Fork 仓库,在一个分支上完成修改。
  4. 提交 Pull Request,并在描述里引用这个 Issue 编号。

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