content_md5 causes TypeError: string argument without an encoding

• Package Name: azure.storage.blob
• Package Version: 12.3.2
• Operating System: MacOS and Ubuntu Linux
• Python Version: 3.7

Describe the bug When uploading a large file I’m trying to use the content_md5 property of the ContentSettings object.

When I try to set the set_http_headers with the documented type str this fails with TypeError: string argument without an encoding. this comes from the construction of the standard bytearray. This is all a bit goofy because I already had to use the base64 package which returns bytes.

To Reproduce Steps to reproduce the behavior:

simplified for the issue. My code will chunk to generate md5.

with open(filepath, 'rb') as f:
  hash = hashlib.md5(f.read())
  f.seek(0)
  blobclient.upload_blob(f, content_settings=ContentSettings(content_md5=b64encode(hash.digest()).decode('utf-8)))

Providing this content settings configuration for upload_blob and set_http_headers methods both cause this exception. Looks like different code paths causing the same problem, copy and paste-like. Seems to work fine with V2 of the SDK.

Expected behavior No exceptions and correct md5 so a consumer can validate the result of the whole file.

[msftbot[bot]]

Thanks for the feedback! We are routing this to the appropriate team for follow-up. cc @xgithubtriage.

[xiafu-msft]

we will close this for now and make the doc clear