Hey, I need help in python

I wanna to make a program that generate a line with random shape of blocks. I did well so far. But I dont want to def every single block. Is there a way to do a def function in for to every time when for happened def something else? If not how can i def 10 objects with not just copy and pasting 10 times and changing names. I wanna to my code be more compact, Thanks for reading! I also added a project if I didnt explain well what I am trying to do

import random
import pygame

pygame.init()
black = 0, 0, 0
white = 255, 255, 255
red = 255, 0, 0
green = 0, 255, 0
blue = 0, 0, 255

screen = pygame.display.set_mode((800, 600))

BlockImg = pygame.image.load('cobblestone.png')
blockX = random.randint(0, 800)
blockY = random.randint(0, 600)

position = random.randint(1, 6)
if position == 1:
    block2X = blockX - 16
    block2Y = blockY
if position == 2:
    block2X = blockX + 16
    block2Y = blockY
if position == 3:
    block2X = blockX
    block2Y = blockY - 16
if position == 4:
    block2X = blockX + 16
    block2Y = blockY - 16
if position == 5:
    block2X = blockX + 16
    block2Y = blockY + 16
if position == 6:
    block2X = blockX - 16
    block2Y = blockY + 16

positionoftwo = random.randint(1, 6)
if positionoftwo == 1:
    block3X = blockX - 16
    block3Y = blockY
if positionoftwo == 2:
    block3X = block2X + 16
    block3Y = block2Y
if positionoftwo == 3:
    block3X = block2X
    block3Y = block2Y - 16
if positionoftwo == 4:
    block3X = block2X + 16
    block3Y = block2Y - 16
if positionoftwo == 5:
    block3X = block2X + 16
    block3Y = block2Y + 16
if positionoftwo == 6:
    block3X = block2X - 16
    block3Y = block2Y + 16


# can I automate that?

def one(x, y):
    screen.blit(BlockImg, (x, y))


def two(x, y):
    screen.blit(BlockImg, (x, y))


def three(x, y):
    screen.blit(BlockImg, (x, y))


def four(x, y):
    screen.blit(BlockImg, (x, y))


def five(x, y):
    screen.blit(BlockImg, (x, y))


def six(x, y):
    screen.blit(BlockImg, (x, y))


def seven(x, y):
    screen.blit(BlockImg, (x, y))


running = True
while running:
    screen.fill(black)

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
    one(blockX, blockY)
    two(block2X, block2Y)
    three(block3X, block3Y)

    pygame.display.update()