#8 Python :- Dictionaries

 Dictionary:-

                    It is basically key value pair . They are optimized to know the value when the key is known. Creating a dictionary is very simple just placing the elements inside the curly brakets {} separated by commas.

              e.q.  mydic= {"monu":"good", "madhu":"lazy", "sonu":"fatty"}

     

    Properties :-

         i) Mutable:- It means we can change the values of dictionaries.

                      e.q. :-      mydic= {"monu":"good", "madhu":"lazy", "sonu":"fatty"}

                                    mydic["monu"] ="cute"

                                  print(mydic) --->{'monu':'cute', 'madhu':'lazy', 'sonu':'fatty'}

                       We can also add and delete key value pair by same method:-

                   mydic = {"monu":"good", "madhu":"lazy", "sonu":"fatty"}

                      mydic["manish"] ---> "skiny"

                      print(mydic) ----> = {'monu':'good', 'madhu':'lazy', 'sonu':'fatty', 'manish':'skiny'}

                      del mydic["sonu"]

                      print(mydic) ----.{'monu':'good', 'madhu':'lazy', 'manish':'skiny'}

     ii) Unordered :- we can't do indexing and slicing for the dictionaries.


Some project:-

Project 1:- Create a dictonary asking some key value and showing the result.

Soln:-    dic={'monu':'good', 'madhu':'lazy', 'sonu':'fatty', 'manish':'skiny'}

             word= input('Enter the key word:- ')

             print(dic[word])

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