How to display this output in python?

Question

It should be made using for loop
Output :
1
21
321
4321
54321

1
12
123
1234
12345

Answer 1

public class Program
{
public static void main(String[] args) {
String k="4321";
for(int i=0;i<k.length();i++){
for(int j=0;j<i+1;j++){
System.out.print(k.charAt(j));
}
System.out.println(" ");
}
}
}

Answer 2

How could you print 54321 with loop?