import os import awswrangler as wr df = wr.s3.read_parquet( path=f"s3://{os.environ['data-gen-bucket']}/parquet/medium/partitioned/", ray_args={"parallelism": 1000}, ) wr.s3.to_parquet( df=df, path=os.environ["output-path"], dataset=True, partition_cols=["payment_type", "passenger_count"], )