Python/dictionary.py at main · PrernaSakre/Python · GitHub

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phones= {
    "ashu" :99,
    "prerna" : 93,
    "pranay" : 95,
    "papa" : 79
}
print(type(phones))    #type
print(len(phones))     #to find the length
print(phones["ashu"])   #to find the value of given key
print(phones.get("prerna"))    #it is also used to get the value of a key
print(phones.keys())        #to print all keys present in dictionary
print(phones.values())       #to print all values
print("the sum of all key value is: ",sum(phones.values()))


#change the value
phones["ashu"]=78
print(phones)

#add new keys and value
phones["ria"]=90
print(phones)

#add a new dictionary to old dictionary
phones_1={
    "ram":56,
    "krish":13,
    "jay":45
}
phones.update(phones_1)
print(phones)

#remove a key value
phones.pop("ashu")
print(phones)

#remove last key value
phones.popitem()
print(phones)

#empty the dictionary
phones.clear()
print(phones.items())