new_contents: #!/usr/bin/env python
  
  # Exercise 10: What Was That?
  
  print "I am 6'2\" tall."  # escape double-quote inside string
  print 'I am 6\'2" tall.'  # escape single-quote inside string
  
  tabby_cat = "\tI'm tabbed in."
  persian_cat = "I'm split\non a line."
  backslash_cat = "I'm \\ a \\ cat."
  
  fat_cat = """
  I'll do a list:
  \t* Cat food
  \t* Fishies
  \t* Catnip\n\t* Grass
  """
  
  print tabby_cat
  print persian_cat
  print backslash_cat
  print fat_cat
  
  while True:
      for i in ["/","-","|","\\","|"]:
          print "%s\r" % i,
  
subject: add ex10