For convenience, this module provide some wrappers for the Azure append blob writer. It implements the write function of the object and a context manager, allowing for you to easily use things like the CVS package, or simply appending to an append blob directly.
pip install aablobwrapper
import csv
from aablobwrapper import SyncBlobAppender
connection_string = "https://<storageaccount>.blob.core.windows.net/<container_name>"
credential = "<key>"
container_name = "<container_name>"
blob_name = "<blobname>"
appender = SyncBlobAppender(connection_string, credential, container_name, blob_name, binary=False)
csv_writer = csv.writer(appender)
csv_writer.writerow(["write", "some", "data"])
for more examples, for example, to see how to use context managers or how to use the async version, see the examples folder.