old_contents: # -*- coding: utf-8 -*-
  """
      Utilitybelt
      ~~~~~
  
      :copyright: (c) 2014 by Halfmoon Labs
      :license: MIT, see LICENSE for more details.
  """
  
  import os, binascii
  
  def dev_urandom_entropy(numbytes):
  	""" Reads random bytes from the /dev/urandom pool.
  
  		NOTE: /dev/urandom is a non-blocking pseudorandom number generator.
  		If the entropy pool runs out, previously released entropy will be used.
  		If blocking is unnacceptable, use this over "dev_urandom_entropy".
  	"""
  	return os.urandom(numbytes)
  
  def dev_random_entropy(numbytes, fallback_to_urandom=True):
  	""" Reads random bytes from the /dev/random entropy pool.
  
  		NOTE: /dev/random is a blocking pseudorandom number generator.
  		If the entropy pool runs out, this function will block until more
  		environmental noise is gathered.
  		If entropy re-use is unnacceptable, use this over "dev_urandom_entropy".
  		
  		If "fallback_to_urandom" is set, this function will fallback to
  		/dev/urandom on operating systems that don't have /dev/random available.
  	"""
  	if os.name == 'nt' and fallback_to_urandom:
  		return get_devurandom_entropy(numbytes)
  	return open("/dev/random", "rb").read(numbytes)
  
new_contents: # -*- coding: utf-8 -*-
  """
      Utilitybelt
      ~~~~~
  
      :copyright: (c) 2014 by Halfmoon Labs
      :license: MIT, see LICENSE for more details.
  """
  
  import os
  import binascii
  
  
  def dev_urandom_entropy(numbytes):
      """ Reads random bytes from the /dev/urandom pool.
  
          NOTE: /dev/urandom is a non-blocking pseudorandom number generator.
          If the entropy pool runs out, previously released entropy will be used.
          If blocking is unnacceptable, use this over "dev_urandom_entropy".
      """
      return os.urandom(numbytes)
  
  
  def dev_random_entropy(numbytes, fallback_to_urandom=True):
      """ Reads random bytes from the /dev/random entropy pool.
  
          NOTE: /dev/random is a blocking pseudorandom number generator.
          If the entropy pool runs out, this function will block until more
          environmental noise is gathered.
          If entropy re-use is unnacceptable use this over "dev_urandom_entropy".
  
          If "fallback_to_urandom" is set, this function will fallback to
          /dev/urandom on operating systems without /dev/random.
      """
      if os.name == 'nt' and fallback_to_urandom:
          return dev_urandom_entropy(numbytes)
      return open("/dev/random", "rb").read(numbytes)
  
subject: fix bug in entropy.py on windows