Dictionary in Python

Dictionary in Python:-

it is used to store data using key: value pair, the key is used to provide identity and value is used to represent data.

Syntax

var = {'key':value,'key':value,'key':value}

student= {'rno':1001,'sname':"manish",'branch':"cs",'fees':45000}

print(student['rno'])


Dictionary provides a mutable object that means we can add, edit, and delete dictionary elements.

1) update():-  this method will add elements if the key does not exist otherwise update data.

student.update({'key':value})


2 delete():-  it is used to remove any data from the dictionary

del(student['rno'])


Complete Program Explanation of Dictionary:-

student= {'rno':1001,'sname':"manish",'branch':"cs",'fees':45000}

student.update({'sem':'vth'})
del(student['rno'])
for key in student:
    print(key + "---->" + str(student[key]))
print(student.keys())
print(student.values())
print(len(student))



ASSIGNMENT OF DICTIONARY:-

WAP to reverse dictionary elements?

WAP to find max key and max value in Dictionary?

WAP to count total integer, string, and float value in the dictionary?

WAP to create a dictionary to store five employee record using "empid","empname","job" and "salary
"?