Headfirst Python Exercise

[menator01]

In this example, the for loop and range(99, 0, -1) tells the script how many times to loop through something whether it be a word, function, object, etc. beer_num could be an underscore, letter, or word. There are special characters than can not be used.
You can get the same effects with a while loop.

Both give same result

print('----- for loop -----')
for _ in range(10, 0, -1):
    print(_)
bottles = 10
print()
print('----- while loop -----')
while bottles > 0:
    print(bottles)
    bottles -= 1

Output:
----- for loop -----
10
9
8
7
6
5
4
3
2
1

----- while loop -----
10
9
8
7
6
5
4
3
2
1