right way to run some code with timeout in Python

Question

I looked online and found some SO discussing and ActiveState recipes for running some code with a timeout. It looks there are some common approaches:

• Use threa

Answer 1

solving with the 'with' construct and merging solution from -

• Timeout function if it takes too long to finish

• this thread which work better.

  import threading, time
  
  class Exception_TIMEOUT(Exception):
      pass
  
  class linwintimeout:
  
      def __init__(self, f, seconds=1.0, error_message='Timeout'):
          self.seconds = seconds
          self.thread = threading.Thread(target=f)
          self.thread.daemon = True
          self.error_message = error_message
  
      def handle_timeout(self):
          raise Exception_TIMEOUT(self.error_message)
  
      def __enter__(self):
          try:
              self.thread.start()
              self.thread.join(self.seconds)
          except Exception, te:
              raise te
  
      def __exit__(self, type, value, traceback):
          if self.thread.is_alive():
              return self.handle_timeout()
  
  def function():
      while True:
          print "keep printing ...", time.sleep(1)
  
  try:
      with linwintimeout(function, seconds=5.0, error_message='exceeded timeout of %s seconds' % 5.0):
          pass
  except Exception_TIMEOUT, e:
      print "  attention !! execeeded timeout, giving up ... %s " % e