Function not printing anything to the console in Python

I have written a function that takes one argument – rows, and prints an upside-down pyramid of stars.

def printUpsideDownPyramid(rows):
    for i in range(rows, -1, -1): #For spaces
        for space in range(rows-i):
            print(" ", end="")
    for star in range(2*i-1): #For stars
        print("*", end="")
    print() #New row


printUpsideDownPyramid(9)

When I call it, nothing is printed on the console. I am a beginner in Python, please help me understand what is the problem

>Solution :

This is either bad logic (planning the program), or bad indentation (typing it). What you presumably want is:

def printUpsideDownPyramid(rows):
    for i in range(rows, -1, -1): #For spaces
        for space in range(rows-i):
            print(" ", end="")
        for star in range(2*i-1): #For stars
            print("*", end="")
        print() #New row

printUpsideDownPyramid(9)

See this running at https://ideone.com/UBP93T, with output:

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

Consider also the shorter formulation:

def printUpsideDownPyramid(rows):
    for i in range(rows, -1, -1): #For spaces
        print((" " * (rows - i)) + ("*" * (2*i-1)))