Making 6 different random Numbers

I'm not that good at coding right now, i am trying to improve and learn. ATM i was trying to write a code that randomly picks 6 non-repeating numbers, but i fail at it. what should i do?

import random

a = random.randint(1, 100)
b = random.randint(1, 100)
c = random.randint(1, 100)
x = random.randint(1, 100)
y = random.randint(1, 100)
z = random.randint(1, 100)

outa = b, c, x, y, z
outb = a, c, x, y, z
outc = a, b, x, y, z
outx = a, b, c, y, z
outy = a, b, c, x, z
outz = a, b, c, x, y

all = a, b, c, x, y, z

while a in outa or b in outb or c in outc or x in outx or y in outy or z in outz:
    if a in outa:
        a = random.randint(1,100)
    elif b in outb:
        b = random.randint(1,100)
    elif c in outc:
        c = random.randint(1,100)
    elif x in outx:
        x = random.randint(1,100)
    elif y in outy:
        y = random.randint(1,100)
    elif z in outz:
        z = random.randint(1,100)

print(all)