old_contents: """registry.py
  
  Functionality for working with the Harvest System's registry file.
  """
  
  from os.path import isfile
  import yaml
  
  def save_registry(filename, registry):
      """Save the registry to disk.
  
      Arguments:
      ----------
      registry : Dict
      """
  
      with open(filename, "wb") as registry_file:
          registry_file.write(yaml.dump(registry, default_flow_style=False))
  
  
  def parse_registry_file(filename):
      """Parse the registry file.
  
      Arguments:
      ----------
  
      filename : str
      """
  
      if not isfile(filename):
          print "Couldn't find specified file: `%s`." % filename
          return None
  
  
      parsed = None
  
      with open(filename, "rb") as registry_file:
          parsed = yaml.load(registry_file.read())
  
      return parsed
new_contents: """registry.py
  
  Functionality for working with the Harvest System's registry file.
  """
  
  from os.path import isfile
  import yaml
  
  def save_registry(filename, registry):
      """Save the registry to disk.
  
      Arguments:
      ----------
      registry : Dict
      """
  
      with open(filename, "wb") as registry_file:
          registry_file.write(yaml.dump(registry, default_flow_style=False))
  
  
  def parse_registry_file(filename):
      """Parse the registry file.
  
      Arguments:
      ----------
  
      filename : str
      """
  
      if not isfile(filename):
          print "Couldn't find specified file: `%s`." % filename
          return None
  
  
      parsed = None
  
      with open(filename, "rb") as registry_file:
          parsed = yaml.load(registry_file.read())
  
      return parsed
  
subject: Fix whitespace issue