api - Restart Python Script after BadStatusLine Error -

i have program here streams market prices , executes orders based on prices, however, every once in while (few hours or so) throws error:

exception in thread thread-1: traceback (most recent call last):   file "/library/frameworks/python.framework/versions/2.7/lib/python2.7/threading.py", line 810, in __bootstrap_inner     self.run()   file "/library/frameworks/python.framework/versions/2.7/lib/python2.7/threading.py", line 763, in run     self.__target(*self.__args, **self.__kwargs)   file "/users/mattduhon/trading4.py", line 30, in trade     execution.execute_order(event)   file "/users/mattduhon/execution.py", line 34, in execute_order     response = self.conn.getresponse().read()   file "/library/frameworks/python.framework/versions/2.7/lib/python2.7/httplib.py", line 1073, in getresponse     response.begin()   file "/library/frameworks/python.framework/versions/2.7/lib/python2.7/httplib.py", line 415, in begin     version, status, reason = self._read_status()   file "/library/frameworks/python.framework/versions/2.7/lib/python2.7/httplib.py", line 379, in _read_status     raise badstatusline(line) badstatusline: '' 

once error occurs program keeps running without executing orders, streams rates. question how can ensure program keep trading? either restarting program or ignoring error or else? in advance.

additional code:

excecution.py

import httplib import urllib   class execution(object):     def __init__(self, domain, access_token, account_id):         self.domain = domain         self.access_token = access_token         self.account_id = account_id         self.conn = self.obtain_connection()      def obtain_connection(self):         return httplib.httpsconnection(self.domain)      def execute_order(self, event):         headers = {             "content-type": "application/x-www-form-urlencoded",             "authorization": "bearer " + self.access_token         }         params = urllib.urlencode({             "instrument" : event.instrument,             "units" : event.units,             "type" : event.order_type,             "side" : event.side,             "stoploss" : event.stoploss,             "takeprofit" : event.takeprofit          })         self.conn.request(             "post",             "/v1/accounts/%s/orders" % str(self.account_id),             params, headers         )         response = self.conn.getresponse().read()  #line34////////////         print response 

and trading4.py

import queue import threading import time import json   execution import execution settings4 import stream_domain, api_domain, access_token, account_id strategy4 import testrandomstrategy streaming import streamingforexprices    #checks events , executes order                 def trade(events, strategy, execution):      while true:          try:             event = events.get(false)         except queue.empty:             pass          else:             if event not none:                 if event.type == 'tick':                     strategy.calculate_signals(event)                 elif event.type == 'order':                     print                      execution.execute_order(event)  #line30//////////////   if __name__ == "__main__":     heartbeat = 0  # half second between polling     events = queue.queue()  # trade 1 unit of eur/usd     instrument = "eur_usd"     units = 10      prices = streamingforexprices(         stream_domain, access_token, account_id,         instrument, events     )     execution = execution(api_domain, access_token, account_id)      strategy = testrandomstrategy(instrument, units, events)   #threads     trade_thread = threading.thread(target=trade, args=(events, strategy, execution))     price_thread = threading.thread(target=prices.stream_to_queue, args=[])     # stop_thread = threading.thread(target=rates, args=(events,))        # start both threads     trade_thread.start()     price_thread.start()     # stop_thread.start() 

catch exception:

        httplib import badstatusline         ............          try:             response = self.conn.getresponse().read()  #line34////////////         except badstatusline e:             print(e)         else:                       print response