zigzag example

[shabux]

windows 10, python 3.8

Trying to do zigzag example but not getting right result. I type following code, which I think is identical to the lesson's:

import time, sys
indent = 0 # How many spaces to indent.
indentIncreasing = True #Whether the indentation is increasing or not.

try:
    while True: #The main program loop
        print('' * indent, end='')
        print('********')
        time.sleep(0.1) #Pause for 1/10 of a second.

        if indentIncreasing:
            #Increase the number of spaces:
            indent = indent + 1
            if indent == 20:
                #Change direction:
                indentIncreasing = False

        else:
            #Decrease the number of spaces:
            indent = indent - 1 
            if indent == 0:
                #Change direction:
                indentIncreasing = True

except KeyboardInterrupt:
    sys.exit()

But instead of getting a looping result like this:

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

...I am instead getting a looping result like this:

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