text: import numpy
  import weakref
  import threading
  import warnings
  import platform
  import sys
  
  from future.utils import viewitems
  
  MULTIPROCESSING = True
  # Deal with Mac OS X issuse
  config_info = str([value for key, value in
                     viewitems(numpy.__config__.__dict__)
                     if key.endswith("_info")]).lower()
  
  if "accelerate" in config_info or "veclib" in config_info :
      warnings.warn("NumPy linked against 'Accelerate.framework'. "
                    "Multiprocessing will be disabled."
                    " http://mail.scipy.org/pipermail/numpy-discussion/2012-August/063589.html")
      MULTIPROCESSING = False
  elif "mkl_core" in config_info:
      warnings.warn("Numpy linked against MKL. "
                    "Multiprocessing will be disabled. https://github.com/joblib/joblib/issues/138")
      MULTIPROCESSING = False
  elif platform.system() == 'Windows' :
      warnings.warn("Dedupe does not currently support multiprocessing on Windows")
      MULTIPROCESSING = False
  
  if MULTIPROCESSING :        
      from multiprocessing import Process, Pool, Queue
      if sys.version < '3':
          from multiprocessing.queues import SimpleQueue
      else :
          from multiprocessing import SimpleQueue
  else :
      if not hasattr(threading.current_thread(), "_children"): 
          threading.current_thread()._children = weakref.WeakKeyDictionary()
      from multiprocessing.dummy import Process, Pool, Queue
      SimpleQueue = Queue
  
  
  