'HTTP headers is not in the correct format' error when creating Azure Container using Python SDK

Question

I'm trying to create an Azure blob container using Python SDK with the below code. I'm getting an 'ErrorCode:InvalidHeaderValue' in the response.

I'm using the 'ConnectionString' from 'Access Keys' section from the Azure Portal of the storage account. And I don't think the connection is the issue since this line works ok blob_service_client = BlobServiceClient.from_connection_string(connection_string).

I used a clean venv for this and below are the library versions azure-core==1.10.0 azure-storage-blob==12.7.1

import os
import yaml
from azure.storage.blob import ContainerClient, BlobServiceClient

def load_config():
    dir_root = os.path.dirname(os.path.abspath(__file__))
    with open (dir_root + "/config.yaml", "r") as yamlfile:
        return yaml.load(yamlfile, Loader=yaml.FullLoader)

config = load_config()
connection_string = config['azure_storage_connectionstring']

blob_service_client = BlobServiceClient.from_connection_string(connection_string)
blob_service_client.create_container('testing')

Traceback (most recent call last):
  File "/Users/anojshrestha/Documents/codes/gen2lake/project_azure/lib/python3.7/site-packages/azure/storage/blob/_container_client.py", line 292, in create_container
    **kwargs)
  File "/Users/anojshrestha/Documents/codes/gen2lake/project_azure/lib/python3.7/site-packages/azure/storage/blob/_generated/operations/_container_operations.py", line 134, in create
    raise HttpResponseError(response=response, model=error)
azure.core.exceptions.HttpResponseError: Operation returned an invalid status 'The value for one of the HTTP headers is not in the correct format.'

During handling of the above exception, another exception occurred:
.......
azure.core.exceptions.HttpResponseError: The value for one of the HTTP headers is not in the correct format.
RequestId:5X-601e-XXXX00ab-5368-f0c05f000000
Time:2021-01-22T02:43:22.3983063Z
ErrorCode:InvalidHeaderValue
Error:None
HeaderName:x-ms-version
HeaderValue:2020-04-08```

Could you please enable the log to get the detailed error message : https://learn.microsoft.com/en-us/azure/developer/python/azure-sdk-logging? — Jim Xu, Jan 22 '21 at 05:40
Same story here. Looks like a bug in azure-storage-blob. I reverted to 12.6.0 and that fixed the issue. — kopaczew, Jan 22 '21 at 13:13
Thanks @kopaczew. You're right! Rolling back the version fixed my issue. I'll see if there's an existing bug raised. — anoj-cha, Jan 25 '21 at 05:02

score 5 · Accepted Answer · answered Jan 30 '21 at 01:41

5

You do not need to reinstall. You can get around this issue by setting your api_version variable when instantiating any of the clients.

For example:

blob = BlobServiceClient(
    account_url="https://MY_BLOB_STORAGE.blob.core.windows.net",
    credential="MY_PRIMARY_KEY",
    api_version="2019-12-12", #or api_version='2020-02-10'
)

https://github.com/Azure/azure-sdk-for-python/issues/16193

answered Jan 30 '21 at 01:41

Tamer Sherif

66
1

Thanks @Tamer! Looks like your answer was verified by someone. I'll choose your answer. – anoj-cha Jan 30 '21 at 03:56

score 1 · Answer 2 · answered Jan 25 '21 at 05:01

As mentioned by @kopaczew, reverting the azure_storage_blob to 12.6.0 version fixed my issue. It does seem to be some sort of bug with the latest azure-storage-blob library. Unfortunately, the aforementioned issue is not limited to the create_container call. Answering my own question in case this helps someone else in a similar situation.

How I fixed my issue:

Removed my previous venv environment (reinstalling itself caused some issues when importing the azure library)
Created new venv
pip install azure-storage-bob==12.6.0

'HTTP headers is not in the correct format' error when creating Azure Container using Python SDK

2 Answers2