How to increase the probability of choosing a number?

So i have a code that choses a random number between 1 and 2. If the code choses 1, i want to increase the probability of choosing 1 by 10%. If the code choses 2, i want to increase the probability of choosing by 2 15%. Here is my code :

import pygame, random,sys

pygame.init()
SCREEN_WIDTH = 500
SCREEN_HEIGHT = 500
BLACK = (0,0,0)
white = "#FFFFFF"
win = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT))
pygame.display.set_caption("Test")

def test2():
win.fill(BLACK)

    test = random.randint(1,2) 
    text_font = pygame.font.Font('freesansbold.ttf', 100)
    screws_text = text_font.render(str(test), True ,white)
    textRect = screws_text.get_rect()
    textRect.center = (250,250)
    win.blit(screws_text, textRect)
    
    
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            sys.exit() 
    pygame.display.update()

while True:

    for event in pygame.event.get():
        
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_SPACE:
                test2()
        if event.type == pygame.QUIT:
            pygame.quit()
            sys.exit()

I didn't really tried anything because i have no idea that i should do, i never did that so i would be very grateful if you could help me.