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Decompress a zip file in S3 into a folder and upload it back to S3 (via SageMaker)
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| import boto3 | |
| import os | |
| from zipfile import ZipFile | |
| # When running on SageMaker, need execution role | |
| from sagemaker import get_execution_role | |
| role = get_execution_role() | |
| # Declare bucket name, remote file, and destination | |
| my_bucket = "" | |
| zip_file = "" | |
| extracted_folder_name = "" | |
| # Function to Upload folder to S3 | |
| def upload_folder_to_s3(s3bucket, inputDir, s3Path): | |
| print("Uploading results to s3 initiated...") | |
| print("Local Source:",inputDir) | |
| os.system("ls -ltR " + inputDir) | |
| print("Dest S3path:",s3Path) | |
| try: | |
| for path, subdirs, files in os.walk(inputDir): | |
| for file in files: | |
| dest_path = path.replace(inputDir,"") | |
| __s3file = os.path.normpath(s3Path + '/' + dest_path + '/' + file) | |
| __local_file = os.path.join(path, file) | |
| print("upload : ", __local_file, " to Target: ", __s3file, end="") | |
| s3bucket.upload_file(__local_file, __s3file) | |
| print(" ...Success") | |
| print("Folder Upload Comleted") | |
| except Exception as e: | |
| print(" ... Failed!! Quitting Upload!!") | |
| print(e) | |
| raise e | |
| # Connect to S3 bucket and download file | |
| s3 = boto3.resource('s3') | |
| bucket = s3.Bucket(my_bucket) | |
| bucket.download_file(zip_file, zip_file) | |
| # Extact the zip file to a new folder | |
| with ZipFile(zip_file, 'r') as zipObj: | |
| zipObj.extractall(extracted_folder_name) | |
| upload_folder_to_s3(s3.Bucket(my_bucket), extracted_folder_name, extracted_folder_name) |
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