ARCHIVED TRAINING / RaRe-Technologies/smart_open

rare-technologies__smart_open-702

This is a preserved training example. Membership in the current training wave has not been verified.

Problem statement

Allow specifying metadata for azure uploads
#### Problem description

I would like to upload an Azure blob with metadata. This is currently possible with s3 and gcs:

```py
metadata = {"name": "bla"}
bucket = "test"
key = "test"
open(
    f"s3://{bucket}/{key}",
    "wb",
    transport_params={
        "client_kwargs": {"S3.Client.create_multipart_upload": {"Metadata": metadata},
    },
)
open(
    f"gs://{bucket}/{key}",
    "wb",
    transport_params={
        "blob_properties": {"metadata": metadata},
    },
)
```

For Azure, `smart_open` only has the possibility of passing a custom [`BlobClient`](https://docs.microsoft.com/en-us/python/api/azure-storage-blob/azure.storage.blob.blobclient?view=azure-python) but it looks like metadata needs to be [explicitly passed](https://github.com/Azure/azure-sdk-for-python/blob/azure-storage-blob_12.12.0/sdk/storage/azure-storage-blob/azure/storage/blob/_blob_client.py#L2631) to `BlobClient.commit_block_list`. 

I suggest introducing `blob_kwargs`:
```py
open(
    f"azure://{container}/{path}",
    "wb",
    transport_params={
        "blob_kwargs": {"metadata": metadata},
    },
)
```

#### Steps/code to reproduce the problem

N/A

#### Versions

Please provide the output of:

```pycon
>>> import platform, sys, smart_open
>>> print(platform.platform())
>>> print("Python", sys.version)
>>> print("smart_open", smart_open.__version__)
macOS-10.15.7-x86_64-i386-64bit
Python 3.8.10 (default, Sep  1 2021, 10:14:33)
[Clang 12.0.0 (clang-1200.0.32.29)]
smart_open 6.0.0
```

#### Checklist

Before you create the issue, please make sure you have:

- [x] Described the problem clearly
- [x] Provided a minimal reproducible example, including any required data
- [x] Provided the version numbers of the relevant software

Training membership

opd_e4b_pure_v7 opd_e4b_pure_v7b

Task issues extracted from preserved verified_rft_messages training examples. This is not a verified current RL wave manifest.

Task and snapshot provenance

Snapshot captured 2026-11-12T17:06:59.476467+00:00 · Autoresearch-Arena/gemma-4-developer-agent

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  "problem_statement": "Allow specifying metadata for azure uploads\n#### Problem description\r\n\r\nI would like to upload an Azure blob with metadata. This is currently possible with s3 and gcs:\r\n\r\n```py\r\nmetadata = {\"name\": \"bla\"}\r\nbucket = \"test\"\r\nkey = \"test\"\r\nopen(\r\n    f\"s3://{bucket}/{key}\",\r\n    \"wb\",\r\n    transport_params={\r\n        \"client_kwargs\": {\"S3.Client.create_multipart_upload\": {\"Metadata\": metadata},\r\n    },\r\n)\r\nopen(\r\n    f\"gs://{bucket}/{key}\",\r\n    \"wb\",\r\n    transport_params={\r\n        \"blob_properties\": {\"metadata\": metadata},\r\n    },\r\n)\r\n```\r\n\r\nFor Azure, `smart_open` only has the possibility of passing a custom [`BlobClient`](https://docs.microsoft.com/en-us/python/api/azure-storage-blob/azure.storage.blob.blobclient?view=azure-python) but it looks like metadata needs to be [explicitly passed](https://github.com/Azure/azure-sdk-for-python/blob/azure-storage-blob_12.12.0/sdk/storage/azure-storage-blob/azure/storage/blob/_blob_client.py#L2631) to `BlobClient.commit_block_list`. \r\n\r\nI suggest introducing `blob_kwargs`:\r\n```py\r\nopen(\r\n    f\"azure://{container}/{path}\",\r\n    \"wb\",\r\n    transport_params={\r\n        \"blob_kwargs\": {\"metadata\": metadata},\r\n    },\r\n)\r\n```\r\n\r\n#### Steps/code to reproduce the problem\r\n\r\nN/A\r\n\r\n#### Versions\r\n\r\nPlease provide the output of:\r\n\r\n```pycon\r\n>>> import platform, sys, smart_open\r\n>>> print(platform.platform())\r\n>>> print(\"Python\", sys.version)\r\n>>> print(\"smart_open\", smart_open.__version__)\r\nmacOS-10.15.7-x86_64-i386-64bit\r\nPython 3.8.10 (default, Sep  1 2021, 10:14:33)\r\n[Clang 12.0.0 (clang-1200.0.32.29)]\r\nsmart_open 6.0.0\r\n```\r\n\r\n#### Checklist\r\n\r\nBefore you create the issue, please make sure you have:\r\n\r\n- [x] Described the problem clearly\r\n- [x] Provided a minimal reproducible example, including any required data\r\n- [x] Provided the version numbers of the relevant software",
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}

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  "membership": "archived training",
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