Pastebin

import boto3

# Connect to the S3 service
s3 = boto3.client('s3')

# Set the name of the source and destination buckets
source_bucket = 'my-source-bucket'
destination_bucket = 'my-destination-bucket'

# Set the name of the source and destination objects
source_object = 'big_data_file.csv'
destination_object = 'query_results.csv'

# Download the data from the source bucket
s3.download_file(source_bucket, source_object, '/tmp/big_data_file.csv')

# Open the file and perform the query
with open('/tmp/big_data_file.csv', 'r') as f:
    data = f.read()
    # Perform the query here
    query_results = data  # Placeholder, replace with actual query

# Save the query results to a file
with open('/tmp/query_results.csv', 'w') as f:
    f.write(query_results)

# Upload the query results to the destination bucket
s3.upload_file('/tmp/query_results.csv', destination_bucket, destination_object)