PySpark code
>>> spark.read.format("parquet").load(path = "parquet_path").show()

teradatamlspk code using parquet as 'format' for cloud file system
>>> spark.read.options(authorization = {"Access_ID": id, "Access_Key": key}).format("parquet").load(path = "parquet_path").show()

teradatamlspk code when parquet file is in local file system
>>> spark.read.format("parquet").load(path = "parquet_path").show()