Invalid syntax sur l'import

import mcpi.minecraft as minecraft
import mcpi.block as block

mc = minecraft.Minecraft.create()

def scan(file, x1, y1, z1, x2, y2, z2):
    pass

def compteur(file):
    pass

def co_zone():
    while True:
        evenements = mc.events.pollBlockHits()
        for e in evenements:
            posi = e.pos
            if pos:
                x1, y1, z1 = pos.x, pos.y, pos.z
                mc.postToChat(f"Premiere position definie en x:{pos.x) y:{pos.y} z:{pos.z}")
                break
    while True:
        evenements = mc.events.pollBlockHits()
        for e in evenements:
            pos = e.pos
            if pos:
                x2, y2, z2 = pos.x, pos.y, pos.z
                mc.postToChat(f"Deuxieme position definie en x:{pos.x) y:{pos.y} z:{pos.z}")
                break
    return [x1, y1, z1, x2, y2, z2]


pos = co_zone()
mc.postToChat(f"{pos[0]} {pos[1]} {pos[2]} {pos[3]} {pos[4]} {pos[5]}")