Phân chia mảng trong python

import java.util.*;
import java.io.*;

public class test{
  public static void main[String[] args]{
    int arr[] = {2,5,27,56,17,4,9,23,76,1,45};
    int n = arr.length, a=15, b=30;
    int low=0, mid=0, high=n-1, temp;

    while[mid b]{
            //swap arr[mid] and arr[high]
            temp = arr[mid];
            arr[mid] = arr[high];
            arr[high] = temp;
            high--;
      } else
            mid++;
    }
    System.out.println["The partitioned array is.."];
    for[int i=0;i