old_contents: from tornado.httpclient import AsyncHTTPClient, HTTPRequest, HTTPClient
  from tornado.httputil import url_concat
  import datetime
  import hashlib
  import hmac
  
  
  class SQSRequest(HTTPRequest):
      """SQS AWS Adapter for Tornado HTTP request"""
      def __init__(self, *args, **kwargs):
          t = datetime.datetime.utcnow()
          method = kwargs.get('method', 'GET')
          url = kwargs.get('url') or args[0]
          params = sorted(url.split('?')[1].split('&'))
          canonical_querystring = '&'.join(params)
          kwargs['url'] = url.split('?')[0] + '?' + canonical_querystring
          args = tuple()
          host = url.split('://')[1].split('/')[0]
          canonical_uri = url.split('://')[1].split('.com')[1].split('?')[0]
          service = 'sqs'
          region = kwargs.get('region', 'eu-west-1')
          super(SQSRequest, self).__init__(*args, **kwargs)
  
  
new_contents: #!/usr/bin/env python
  
  from tornado.httpclient import AsyncHTTPClient, HTTPRequest, HTTPClient
  from tornado.httputil import url_concat
  import datetime
  import hashlib
  import hmac
  
  
  class SQSRequest(HTTPRequest):
      """SQS AWS Adapter for Tornado HTTP request"""
      def __init__(self, *args, **kwargs):
          t = datetime.datetime.utcnow()
          method = kwargs.get('method', 'GET')
          url = kwargs.get('url') or args[0]
          params = sorted(url.split('?')[1].split('&'))
          canonical_querystring = '&'.join(params)
          kwargs['url'] = url.split('?')[0] + '?' + canonical_querystring
          args = tuple()
          host = url.split('://')[1].split('/')[0]
          canonical_uri = url.split('://')[1].split('.com')[1].split('?')[0]
          service = 'sqs'
          region = kwargs.get('region', 'eu-west-1')
          super(SQSRequest, self).__init__(*args, **kwargs)
  
  
subject: Add python shebang