docs: def get_python_datastructure_sizes():
      """
      References:
          http://stackoverflow.com/questions/1331471/in-memory-size-of-python-stucture
  
      CommandLine:
          python -m utool.util_resources --test-get_python_datastructure_sizes
  
      Example:
          >>> # ENABLE_DOCTEST
          >>> from utool.util_resources import *  # NOQA
          >>> import utool as ut  # NOQA
          >>> type_sizes = get_python_datastructure_sizes()
          >>> result = ut.repr4(type_sizes, sorted_=True)
          >>> print(result)
      """
      import sys
      import decimal
      import six
  
      empty_types = {
          'int'     : 0,
          'float'   : 0.0,
          'dict'    : dict(),
          'set'     : set(),
          'tuple'   : tuple(),
          'list'    : list(),
          'str'     : '',
          'unicode' : u'',
          'decimal' : decimal.Decimal(0),
          'object'  : object(),
      }
      type_sizes = {key: sys.getsizeof(val)
                    for key, val in six.iteritems(empty_types)}
      return type_sizes