old_contents: #!/usr/bin/env python
  
  import logging
  import os
  import sys
  
  from huey.consumer import Consumer
  from huey.consumer_options import ConsumerConfig
  from huey.consumer_options import OptionParserHandler
  from huey.utils import load_class
  
  
  def err(s):
      sys.stderr.write('\033[91m%s\033[0m\n' % s)
  
  
  def load_huey(path):
      try:
          return load_class(path)
      except:
          cur_dir = os.getcwd()
          if cur_dir not in sys.path:
              sys.path.insert(0, cur_dir)
              return load_huey(path)
          err('Error importing %s' % path)
          raise
  
  
  def consumer_main():
      parser_handler = OptionParserHandler()
      parser = parser_handler.get_option_parser()
      options, args = parser.parse_args()
  
      if len(args) == 0:
          err('Error:   missing import path to `Huey` instance')
          err('Example: huey_consumer.py app.queue.huey_instance')
          sys.exit(1)
  
      options = {k: v for k, v in options.__dict__.items()
                 if v is not None}
      config = ConsumerConfig(**options)
      config.validate()
  
      huey_instance = load_huey(args[0])
  
      # Set up logging for the "huey" namespace.
      logger = logging.getLogger('huey')
      config.setup_logger(logger)
  
      consumer = huey_instance.create_consumer(**config.values)
      consumer.run()
  
  
  if __name__ == '__main__':
      consumer_main()
  
new_contents: #!/usr/bin/env python
  
  import logging
  import os
  import sys
  
  from huey.consumer import Consumer
  from huey.consumer_options import ConsumerConfig
  from huey.consumer_options import OptionParserHandler
  from huey.utils import load_class
  
  
  def err(s):
      sys.stderr.write('\033[91m%s\033[0m\n' % s)
  
  
  def load_huey(path):
      try:
          return load_class(path)
      except:
          cur_dir = os.getcwd()
          if cur_dir not in sys.path:
              sys.path.insert(0, cur_dir)
              return load_huey(path)
          err('Error importing %s' % path)
          raise
  
  
  def consumer_main():
      parser_handler = OptionParserHandler()
      parser = parser_handler.get_option_parser()
      options, args = parser.parse_args()
  
      if len(args) == 0:
          err('Error:   missing import path to `Huey` instance')
          err('Example: huey_consumer.py app.queue.huey_instance')
          sys.exit(1)
  
      options = {k: v for k, v in options.__dict__.items()
                 if v is not None}
      config = ConsumerConfig(**options)
      config.validate()
  
      huey_instance = load_huey(args[0])
  
      # Set up logging for the "huey" namespace.
      logger = logging.getLogger('huey')
      config.setup_logger(logger)
  
      consumer = huey_instance.create_consumer(**config.values)
      consumer.run()
  
  
  if __name__ == '__main__':
      if sys.version_info >= (3, 8) and sys.platform == 'darwin':
          import multiprocessing
          multiprocessing.set_start_method('fork')
      consumer_main()
  
subject: Fix change in Python 3.8