title: TypeError: start() argument after * must be an iterable, not int
body: <p>I want run some timer in thread，but it display ERROR<code>TypeError: start() argument after * must be an iterable, not int</code>，How can I fix it?</p>
  
  <pre><code>    while 1:
              try:
                  _thread.start_new_thread(self.timer0.start,100)
                  _thread.start_new_thread(self.timer1.start,150)
                  _thread.start_new_thread(self.timer2.start,200)
                  _thread.start_new_thread(self.timer3.start,250)
                  _thread.start_new_thread(self.timer4.start,300)
                  break
              except:
                  print ("Error: unable to start thread")
              break
  </code></pre>