Write a program to perform below operations on dictionary: ● Create a dictionary. ● Print dictionary items. ● Add/remove key-value pair in/from a dictionary. ● Check whether a key exists in a dictionary. ● Iterate through a dictionary. ● Concatenate multiple dictionaries.

 

info = {

    'name':'mrcoder',

    'roll':21,

    'spi':10

    }

print(info)

# alternate methode --> info.update({'sub':'python'})

info['sub'] = 'python'

del info['spi']

print(info)

key = 'name'

if key in info:

    print("Key exist")

else:

    print("key dose not exist")

print(info['name'])

print(info.items())

info2 = {

    'skill':'python',

}

info.update(info2)

print(info)

output:

{'name': 'mrcoder', 'roll': 21, 'spi': 10}

{'name': 'mrcoder', 'roll': 21, 'sub': 'python'}

Key exist

mrcoder

dict_items([('name', 'mrcoder'), ('roll', 21), ('sub', 'python')])

{'name': 'mrcoder', 'roll': 21, 'sub': 'python', 'skill': 'python'}