Error writing to local Blob storage using azure-storage-blob 12.6

• Package Name: azure-storage-blob
• Package Version: 12.6
• Operating System: Raspbian GNU/Linux 10 (buster)
• Python Version: 3.7.3

Describe the bug Get ErrorCode:InvalidHeaderValue when attempting to write to local storage using version 12.6. Version 2.1 appears to work correctly.

To Reproduce Using code sample from this project:

import os
from azure.storage.blob import BlobClient

BLOB_CONNECTION_STRING = 'DefaultEndpointsProtocol=http;AccountName=<account name>;AccountKey=<account key>;BlobEndpoint=http://127.0.0.1:11002/<account name>;'

container = 'iot-timing-upload'
blob_file_name = 'anon.txt'
full_path='/home/pi/anon.txt'

blob = BlobClient.from_connection_string(conn_str=BLOB_CONNECTION_STRING, container_name=container, blob_name=blob_file_name)

with open(full_path, "rb") as data:
    blob.upload_blob(data)

Error:

  File "/home/pi/.local/lib/python3.7/site-packages/azure/storage/blob/_upload_helpers.py", line 106, in upload_block_blob
    **kwargs)
  File "/home/pi/.local/lib/python3.7/site-packages/azure/storage/blob/_generated/operations/_block_blob_operations.py", line 222, in upload
    raise models.StorageErrorException(response, self._deserialize)
azure.storage.blob._generated.models._models_py3.StorageErrorException: 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:

Traceback (most recent call last):
  File "testblob12.6.py", line 13, in <module>
    blob.upload_blob(data)
  File "/home/pi/.local/lib/python3.7/site-packages/azure/core/tracing/decorator.py", line 83, in wrapper_use_tracer
    return func(*args, **kwargs)
  File "/home/pi/.local/lib/python3.7/site-packages/azure/storage/blob/_blob_client.py", line 539, in upload_blob
    return upload_block_blob(**options)
  File "/home/pi/.local/lib/python3.7/site-packages/azure/storage/blob/_upload_helpers.py", line 158, in upload_block_blob
    process_storage_error(error)
  File "/home/pi/.local/lib/python3.7/site-packages/azure/storage/blob/_shared/response_handlers.py", line 147, in process_storage_error
    raise error
azure.core.exceptions.HttpResponseError: The value for one of the HTTP headers is not in the correct format.
RequestId:fc81ad90-1e8d-4574-8a2e-95b4c9e5e158
Time:2020-12-31T12:27:13.0600996Z
ErrorCode:InvalidHeaderValue
Error:None
HeaderName:x-ms-version
HeaderValue:2020-02-10
ExceptionDetails:None
ExceptionMessage:The value 2020-02-10 provided for request header x-ms-version is invalid.
StackTrace:Microsoft.Cis.Services.Nephos.Common.Protocols.Rest.InvalidHeaderProtocolException: The value 2020-02-10 provided for request header x-ms-version is invalid.
   at Microsoft.Cis.Services.Nephos.Common.Protocols.Rest.BasicHttpProcessorWithAuthAndAccountContainer`1.RunVersionCheck() in F:\Storage-XStore\src\XFE\common\Protocols\REST\src\BasicHttpProcessorWithAuthAndAccountContainerBase.cs:line 788
   at Microsoft.Cis.Services.Nephos.Common.Protocols.Rest.BasicHttpProcessorWithAuthAndAccountContainer`1.ProcessImpl(AsyncIteratorContext`1 async)+MoveNext() in F:\Storage-XStore\src\XFE\common\Protocols\REST\src\BasicHttpProcessorWithAuthAndAccountContainerBase.cs:line 1537

Expected behavior Upload file to blob

Additional context Works correctly using same connection string with azure-storage-blob 2.1.0

[xiafu-msft]

Hi @cclague

There is an workaround: set api_version=“2019-12-12” when initiating BlobClient eg. BlobClient.from_connection_string(your_con_str, your_container_name, your_blob_name, api_version=“2019-12-12”)

we have customers reporting the similar issue before, and we reached out to another team for help https://github.com/MicrosoftDocs/azure-docs/issues/65265 let me check if there’s any updates

[cclague]

Hi - version 1.4.0 of “Azure Blob Storage on IoT Edge” module works - thank you!