diamond.py

"""
diamond.py
This program prints repeating diamonds:
     O
    OOO
   OOOOO
  OOOOOOO
 OOOOOOOOO
OOOOOOOOOOO
 OOOOOOOOO
  OOOOOOO
   OOOOO
    OOO
     O
"""

# Experiment with changing these CONSTANT variable values:
SIZE = 15
DIAMOND_CHAR = 'O'

while True:
    oCount = 1
    spaceCount = SIZE

    # Print the top half of the diamond:
    while spaceCount > 0:
        print(' ' * spaceCount + DIAMOND_CHAR * oCount)
        oCount = oCount + 2
        spaceCount = spaceCount - 1

    # Print the bottom half of the diamond:
    while oCount >= 1:
        print(' ' * spaceCount + DIAMOND_CHAR * oCount)
        oCount = oCount - 2
        spaceCount = spaceCount + 1