def get_iface(self):

    if self.IS_MON: # If the interface is already in monitor mode, it returns its name
      proc = subprocess.Popen('iwconfig',shell = True, stdout = subprocess.PIPE, stderr = subprocess.PIPE).communicate()[0].strip().split('\n')
      for linea in proc:
	if 'Monitor' in linea:
	  mon = linea[0:10].strip()
	  self.IFACE_MON = mon
	  return mon
    else:
      proc = subprocess.Popen('iwconfig',shell = True, stdout = subprocess.PIPE, stderr = subprocess.PIPE).communicate()[0].strip().split('\n')
      ifaces = []
      for linea in proc:
	if 'IEEE' in linea:
	  ifaces.append(linea[0:10].strip())
      if len(ifaces) == 1 and ifaces[0] == '':
	print ALERT + "No wireless interfaces were found!"
	print "    Please check if any wireless device in your PC."
	print "    if you are running on a virtual machine"
	print "    go get an USB wireless device."
	exit()
      elif len(ifaces) > 1:
	print INPUT + "Choose the W.Interface: "
	for i in ifaces:
	  print str(ifaces.index(i)) + " >> " + i
	while True:    # Control the input! you bugseeker!
	  try:
	    choice = int(raw_input(INPUT))
	    self.IFACE = ifaces[choice]
	    return ifaces[choice]
	    break
	  except (IndexError, ValueError):
	    print ALERT + "Number between 0 and %s" %(len(ifaces)-1) #Index error handling
	  except KeyboardInterrupt:
	    print 
	    print ALERT + "Interrupted program!"
	    print 
	    engine.exit_clean()
      else:
	self.IFACE = ifaces[0]
	return ifaces[0]
Solve the dynamic programming problem.
dataset/ETHPy150Open jgilhutton/pyxiewps_WPShack-Python/pyxiewps-EN.py/Config.get_iface--crossover with--dataset/ETHPy150Open QuantEcon/QuantEcon.py/quantecon/markov/ddp.py/DiscreteDP.solve