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Question

def invert_dict(d):

   inverse = dict()

   for key in d:

       val =

d[key]

       for item in val:

           inverse[item]=key

   return inverse


second = dict(

               {'herbivores': {'Cow','Sheep','Goat'},

                'carnivores': {'Cheetah','Lion','Hyena'},

                'Birds': {'Ostrich','Vulture', 'Owl'}})


for key in second:

       print(key,second[key], sep = " : ")


inverse = invert_dict(second)


for key in inverse:

   print(key,inverse[key], sep = " : ")


please help me to modify my above program to read dictionary items from a file and write the inverted dictionary to a file. I was required to decide on the following:

  • How to format each dictionary item as a text string in the input file.
  • How to covert each input string into a dictionary item.
  • How to format each item of your inverted dictionary as a text string in the output file.

i need to come up with input file with original three-or-more items and add at least three new items, for a total of at least six items.


This must include:

  • The input file for original dictionary (with at least six items).
  • The Python program to read from a file, invert the dictionary, and write to a different file.
  • The output file for your inverted dictionary.
  • A description of how you chose to encode the original dictionary and the inverted dictionary in text files.

I really donot understand and i need a tutor to explain this.

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