old_contents: import inspect
  import sys
  
  """
  This method below was copied from wagtail.wagtailcore.utils (v1.11) and allows
  us to handle deprecation of method arguments in a way that doesn't swallow
  `TypeError` exceptions raised further down the chain. Thank you @gasman!
  """
  
  
  def accepts_kwarg(func, kwarg):
      """
      Determine whether the callable `func` has a signature that accepts the
      keyword argument `kwarg`
      """
      if sys.version_info >= (3, 3):
          signature = inspect.signature(func)
          try:
              signature.bind_partial(**{kwarg: None})
              return True
          except TypeError:
              return False
      else:
          # Fall back on inspect.getargspec, available on Python 2.7 but
          # deprecated since 3.5
          argspec = inspect.getargspec(func)
          return (kwarg in argspec.args) or (argspec.keywords is not None)
  
new_contents: import inspect
  
  """
  This method below was copied from wagtail.wagtailcore.utils (v1.11) and allows
  us to handle deprecation of method arguments in a way that doesn't swallow
  `TypeError` exceptions raised further down the chain. Thank you @gasman!
  """
  
  
  def accepts_kwarg(func, kwarg):
      """
      Determine whether the callable `func` has a signature that accepts the
      keyword argument `kwarg`
      """
      signature = inspect.signature(func)
      try:
          signature.bind_partial(**{kwarg: None})
          return True
      except TypeError:
          return False
  
subject: Remove python < 3.4 support from utils.inspection.accepts_kwarg