An example of multithreaded python code that creates about 500 long running threads

gil_threads_test.py

import threading
import datetime
import time
from random import random

class ThreadClass(threading.Thread):
    def set_id(self, id):
        self.id=id
    
    def dummy_delay(self):
        l=[1,2]
        for i in range(2,1000000): 
            a=(l[i-1] + l[i-2]) % 128
            l.append(a)
        l.sort()
            
    def run(self):
        now = datetime.datetime.now()
        if self.id%2 == 0:
            self.dummy_delay()
            print "[%s][%s] hallo from %d" % (self.getName(), now, self.id )
        else:
            print "[%s][%s] hallo from %d" % (self.getName(), now, self.id )


if __name__ == '__main__':
    all=[]
    for i in range(1000):
      t = ThreadClass()
      t.set_id(i)
      all.append(t)
      t.start()
    
    main_thread = threading.currentThread()
    for t in threading.enumerate():
        if t is main_thread:
            continue
        t.join()
        
    print("\nend")