<s>[INST] import threading
def executeThreads(n):
    if __name__ == "__main__":
        threads = []
        for i in range(n):
            t = threading.Thread(target=threadFunction())
            threads.append(t)
            t.start()
        for t in threads:
            t.join()

def threadFunction():
    for i in range(10000000):
        pass

executeThreads(10)
    
from threading import Thread

What's wrong with this code?[/INST]