      """
      return value.tzinfo is None or value.tzinfo.utcoffset(value) is None
  
  
  def make_aware(value, timezone):
      """
      Makes a naive datetime.datetime in a given time zone aware.
      """
      if hasattr(timezone, 'localize'):
          # This method is available for pytz time zones.
 
</s> remove def make_naive(value, timezone):
 </s> add def make_naive(value, timezone=None): </s> remove .. function:: make_aware(value, timezone)
 </s> add .. function:: make_aware(value, timezone=None) </s> remove     :class:`~datetime.datetime`.
 </s> add     :class:`~datetime.datetime`. If ``timezone`` is set to ``None``, it
    defaults to the :ref:`current time zone <default-current-time-zone>`.
def make_aware(value, timezone=None):
      """
      return value.tzinfo is None or value.tzinfo.utcoffset(value) is None
  
  
def make_aware(value, timezone=None):
      """
      Makes a naive datetime.datetime in a given time zone aware.
      """
      if hasattr(timezone, 'localize'):
          # This method is available for pytz time zones.
keep keep keep keep replace keep keep keep keep keep
 Fixed #23668 -- Changed make_aware() and make_naive() to use the current timezone by default

Thanks Aymeric Augustin for review. 
django/utils/timezone.py