About Dictionary

..... Adding new key-value pair to dictionary
$ menu = {} # Empty dictionary
$ menu['Chicken Alfredo'] = 14.50
$ print menu['Chicken Alfredo']
$ print "There are " + str(len(menu)) + " items on the menu."
   There are 1 items on the menu.

.....Removed from a dictionary

$ del dict_name[key_name]


  

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