Nested Dictionary in Python

 

Nested Dictionary

A dictionary can contain dictionaries, this is called nested dictionaries.

Example 1

Create a dictionary that contain three dictionaries:

Student = {
  "Manoj" : {
    "Roll" : "102",
    "Marks" : 300
  },
  "Monu" : {
    "Roll" : "103",
    "Marks" : 326
  },
  "Sonu" : {
    "Roll" : "104",
    "Marks" : 298
  }
}

Print(Student)

Output:

{‘Manoj’: {‘Roll’: ‘102’, ‘Marks’: 300}, ‘Monu’: {‘Roll’: ‘103’, ‘Marks’: 326}, ‘Sonu’: {‘Roll’: ‘104’, ‘Marks’: 298}}

Example 2

family = {
  "child1" : {
    "name" : "Monu",
    "year" : 2004
  },
  "child2" : {
    "name" : "Rohit",
    "year" : 2007
  },
  "child3" : {
    "name" : "Ashu",
    "year" : 2011
  }
}

Print(family)

Output:

{'child1': {'name': ‘Monu’, 'year': 2004}, 'child2': {'name': ‘Rohit’, 'year': 2007}, 'child3': {'name': ‘Ashu’, 'year': 2011}}

Or, if you want to add three dictionaries into a new dictionary:

Example 3

Create three dictionaries, then create one dictionary that will contain the other three dictionaries:

child1 = {
  "name" : "Monu",
  "year" : 2004
}
child2 = {
  "name" : "Rohit",
  "year" : 2007
}
child3 = {
  "name" : "Ashu",
  "year" : 2011
}

family = {
  "child1" : child1,
  "child2" : child2,
  "child3" : child3
}

Print(family)

Output:

{'child1': {'name': ‘Monu’, 'year': 2004}, 'child2': {'name': ‘Rohit’, 'year': 2007}, 'child3': {'name': ‘Ashu’, 'year': 2011}}

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