for loop - How can I reverse an asterisk triangle in python

Question

Currently, I have a code that outputs an asterisk triangle like this:

* 
* * 
* * * 
* * * * 
* * * * * 

Here is the code for it:

num = int(input("Enter the number of rows: "))
for i in range(1,num+1):
    for j in range(1,i+1):
        print("*",end=' ')
    print()

Now, how can I use/modify the same code above to make the triangle look like this:

        *
      * *
    * * *
  * * * *
* * * * * 

Any suggestions?

Answer 1

Using the string method str.rjust:

>>> num = int(input("Enter the number of rows: "))
>>> for i in range(1, num + 1):
...     print(" ".join("*" * i).rjust(num * 2))
Enter the number of rows: 5
         *
       * *
     * * *
   * * * *
 * * * * *