Python – Azure Blob Storage へのアクセスおよびファイルの操作 No.36

sudo apt update
sudo apt updatesudo apt install python3-pip
pip3 install azure-storage-blob
pip3 --version
(結果)
pip 20.0.2 from /usr/lib/python3/dist-packages/pip (python 3.8)

2-2. Azure 無料アカウントを作成し、Azure Blob Storage アカウントを作成します。

(参考情報) Azure 無料アカウント FAQ | Microsoft Azure

export AZURE_STORAGE_CONNECTION_STRING="<yourconnectionstring>"

import os, uuid
from azure.storage.blob import BlobServiceClient, BlobClient, ContainerClient, __version__
try:
    print("Azure Blob Storage v" + __version__ + " - Python quickstart sample")
    # requirements
    connect_str = os.getenv('AZURE_STORAGE_CONNECTION_STRING')
    container_name = "files"
    blob_name = "Yourblobaccountname"
    downloadFileName = "abc.txt"
    localPath = "/home/user/PythonCode/blob-quickstart-v12"
    local_path = local_path + "/data"

    #Create the BlobServiceClient
    blob_service_client = BlobServiceClient.from_connection_string(connect_str)
    # Create the ContainerClient
    container_client = ContainerClient.from_connection_string(connect_str,container_name=container_name)

    # List the blobs in the container and Download the blobs into local.
    print('\nListing blobs and Downloading files...')
    # List the blobs in the container
    blob_list = container_client.list_blobs()
    for blob in blob_list:
        print("\t" + blob.name)
        
        # Download the blob to a local file
        download_file_path = os.path.join(localPath,blob.name)
        # Create a blob client using the local file name as the name for the blob
        blob_client = blob_service_client.get_blob_client(container=container_name,blob=blob.name)
        with open(download_file_path,"wb") as download_file:
            download_file.write(blob_client.download_blob().readall())

    # Upload the created file to the container
    # Create a file in the local data directory to upload and download
    local_file_name = str(uuid.uuid4()) + ".txt"
    upload_file_path = os.path.join(local_path, local_file_name)

    # Write text to the file
    file = open(upload_file_path, 'w')
    file.write("Hello, World!")
    file.close()

    # Create a blob client using the local file name as the name for the blob
    blob_client2 = blob_service_client.get_blob_client(container=container_name, blob=local_file_name)
    print("\nUploading to Azure Storage as blob:\n\t" + local_file_name)
    # Upload the created file
    with open(upload_file_path, "rb") as data:
        blob_client2.upload_blob(data)
    
except Exception as ex:
    print('Exception:')
    print(ex)

$ python3 /home/user/PythonCode/hello/blobstgop.py
Azure Blob Storage v12.8.1 - Python quickstart sample

Listing blobs and Downloading files...
        README.md
        abc.txt

Uploading to Azure Storage as blob:
        a4fb472f-1647-44b9-85df-7982e769b5a7.txt