Pick 3 Lotto Code?

[Python3]

# My example Pick 3
void randomfunc(int chkodds)
{
if (chkodds == 1) goto checkodds;
if (chkodds == 2) : odds = 1
if (chkodds == 3) : odds = 100
if (chkodds == 4) : odds = 1

checkodds:
## check odds of winning
chk_odds=random.randint(*4)

## odds of winning
odds=random.randint(*3)
void randomfunc(int odds)
{
if (odds == 1) goto checkodds
IF (odds == 100) goto checkodds
IF (odds == 1000) goto checkball

checkball:
num=random.randint(*4)
IF (num == 0) goto checkodds
IF (num == 1) goto ball1
IF (num == 2) goto ball2
IF (num == 3) goto ball3

ball1:
lroller=random.randint(*3)
IF (lroller == 0) : a = [1]
IF (lroller == 1) : a = [8]
IF (lroller == 2) : a = [9]
xroller=random.randint(*4)
IF (xroller == 0) : a = [2]
IF (xroller == 1) : a = [3]
IF (xroller == 2) : a = [4]
IF (xroller == 3) : a = [7]

yroller=random.randint(*3)
IF (yroller == 0): a = [0]
IF (yroller == 1): a = [5]
IF (yroller == 2): a = [6]
print ('a')

import os
os.system("pause")

GOTO checkodds
}