NumerApprox Module LoopDemo (py) 

# All lines like this one that begin with a "#"
# are comments. All other non-blank lines are
# program statements.

# Set a variable named "x" to a value of 0
x = 0

while x < 3:
    print x
    # Increase the value of x by one.
    x = x + 1
# End of the while loop. Go back to
# the while statement again.