text: """
  dunderdoc.py
  A Python function to print the .__doc__ attribute (i.e. the docstring) 
  of each item in a list of names given as the argument.
  The function is called dunderdoc because it is an informal convention 
  in the Python community to call attributes such as __name__, that begin 
  and end with a double underscore, dunder-name, and so on.
  Author: Vasudev Ram - http://www.dancingbison.com
  Copyright 2015 Vasudev Ram
  """
  
  def dunderdoc(names):
      for name in names:
          print('-' * 72)
          print(name + '.__doc__:')
          print(eval(name).__doc__)
      print('-' * 72)
  
  # Call dunderdoc() on some basic objects:
  
  a = 1 # an integer
  b = 'abc' # a string
  c = False # a boolean
  d = () # a tuple
  e = [] # a list
  f = {} # a dict
  g = set() # a set
  
  dunderdoc(('a', 'b', 'c', 'd', 'e', 'f', 'g'))
  
  # Call dunderdoc() on some user-defined objects:
  
  class Foo(object):
      """
      A class that implements Foo instances.
      """
  
  def bar(args):
      """
      A function that implements bar functionality.
      """
  
  dunderdoc(['Foo', 'bar'])
  