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import cv2

# read image
img = cv2.imread('Lenna.png')

# convert to grayscale
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)

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# Append
""" Add single element to end of List"""
fruits = ["Apple", "Orange", "Banana"]
fruits.append("Mango")

# Clear
""" Remove all Items from List"""
fruits = ["Apple", "Orange", "Banana"]
fruits.clear()

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 def readTable(tableName: String): DataFrame = {
   val df = spark
      .read
      .format("delta")
      .load("/opt/partitioned_lake/" + tableName)
     df
  }

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import org.apache.spark.sql.delta.DeltaLog
import io.delta.tables._
import org.apache.spark.sql.functions._ 
import org.apache.spark.sql.{SaveMode, SparkSession, DataFrame}

  def createPartitionedTable(data: DataFrame, tableName: String, Keys: String): Unit = {
  data
      .write
      .partitionBy(Keys)
      .format("delta")

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