title: Python exit from all running threads on truthy condition
body: <p>I am using threads to check a header status code from an API url. How can i break loop/stop all other threads if condition is true. Please check following code..</p>
  
  <pre><code>import logging, time, threading, requests
  
  #: Log items
  logging.basicConfig(format='%(asctime)s %(levelname)s : %(message)s', level=logging.INFO)
  
  class EppThread(threading.Thread):
      def __init__(self, group=None, target=None, name=None, args=(), kwargs=None, verbose=None):
          threading.Thread.__init__(self, group=group, target=target, name=name, verbose=verbose)
          self.args = args
  
      def run(self):
          startTime = time.time()
          url = self.args[0]
          limit = self.args[1]
  
          for i in range(limit):
              response = requests.get(url)
              if response.status_code != 200:
                  break
                  #Exit other similar threads (with same url)
              else:
                  print('Thread {0} - success'.format(thread.getName()))
  
           print('process completed')
           # Send Email
  
  
  number_of_threads = 5
  number_of_requests = 100
  
  urls = ['https://v1.api.com/example', 'https://v2.api.com/example']
  
  if __name__ == '__main__':
      startTime = time.time()
  
      for url in urls:
          threads = []
          for i in range(number_of_threads):
              et = EppThread(name = "{0}-Thread-{1}".format(name, i + 1), args=(url, number_of_requests))
              threads.append(et)
              et.start()
  
      # Check if execution time is not greater than 1 minute  
      while len(threads) &gt; 0 and (time.time() - startTime) &lt; 60:
          time.sleep(0.5)
          for thread in threads:
              if not thread.isAlive():
                  threads.remove(thread)
                  print('Thread {0} terminated'.format(thread.getName()))
  
      os._exit(1)
  </code></pre>
  
  <p>Please suggest some better ways that stops code execution if condition gets true in any running thread.</p>
  
  <p>Thanks for your help.</p>