PYTHON STRING KEY VALUE IN DICTIONARY

Table of Contents

INTRODUCTION

Key and value pair both can be string in python dictionaries.

Accessing Values

Using Keys

# Dictionary string key value pair example 1

dict_class_wise_prog = {'A':'Python', 'B':'Java', 'C':'C++', 'D':'PHP', 'E':'XML', 'F':'VB'}
print("\nList of key value pair of dict_class_wise_prog ->", dict_class_wise_prog)

#Accessing values against keys

print("\nValue of key A in dict_class_wise_prog ->", dict_class_wise_prog['A'])
print("Value of key B in dict_class_wise_prog ->", dict_class_wise_prog['B'])
print("Value of key C in dict_class_wise_prog ->", dict_class_wise_prog['C'])
print("Value of key D in dict_class_wise_prog ->", dict_class_wise_prog['D'])
print("Value of key E in dict_class_wise_prog ->", dict_class_wise_prog['E'])
print("Value of key F in dict_class_wise_prog ->", dict_class_wise_prog['F'])

PYTHON STRING KEY VALUE IN DICTIONARY : Output

List of key value pair of dict_class_wise_prog -> {'A': 'Python', 'B': 'Java', 'C': 'C++', 'D': 'PHP', 'E': 'XML', 'F': 'VB'}

Value of key A in dict_class_wise_prog -> Python
Value of key B in dict_class_wise_prog -> Java
Value of key C in dict_class_wise_prog -> C++
Value of key D in dict_class_wise_prog -> PHP
Value of key E in dict_class_wise_prog -> XML
Value of key F in dict_class_wise_prog -> VB

In the above example, we have accessed all the values against keys in dictionary dict_class_wise_prog.

Using values() function

# Dictionary string key value pair example 2

dict_class_wise_prog = {'A':'Python', 'B':'Java', 'C':'C++', 'D':'PHP', 'E':'XML', 'F':'VB'}
print("\nList of key value pair of dict_class_wise_prog ->", dict_class_wise_prog)

#Accessing all values against keys

print("\nList of values of dict_class_wise_prog ->", dict_class_wise_prog.values())

PYTHON STRING KEY VALUE IN DICTIONARY : Output

List of key value pair of dict_class_wise_prog -> {'A': 'Python', 'B': 'Java', 'C': 'C++', 'D': 'PHP', 'E': 'XML', 'F': 'VB'}

List of values of dict_class_wise_prog -> dict_values(['Python', 'Java', 'C++', 'PHP', 'XML', 'VB'])

In the above example, we have used the values() function to accessed values of dictionary dict_class_wise_prog.

Using list() function

# Dictionary string key value pair example 3

dict_class_wise_prog = {'A':'Python', 'B':'Java', 'C':'C++', 'D':'PHP', 'E':'XML', 'F':'VB'}
print("\nList of key value pair of dict_class_wise_prog ->", dict_class_wise_prog)

#Accessing all values against keys

print("\n1st value of dict_class_wise_prog ->", list(dict_class_wise_prog.values())[0])
print("2nd value of dict_class_wise_prog ->", list(dict_class_wise_prog.values())[1])
print("3rd value of dict_class_wise_prog ->", list(dict_class_wise_prog.values())[2])
print("4th value of dict_class_wise_prog ->", list(dict_class_wise_prog.values())[3])
print("5th value of dict_class_wise_prog ->", list(dict_class_wise_prog.values())[4])
print("6th value of dict_class_wise_prog ->", list(dict_class_wise_prog.values())[5])

PYTHON STRING KEY VALUE IN DICTIONARY : Output

List of key value pair of dict_class_wise_prog -> {'A': 'Python', 'B': 'Java', 'C': 'C++', 'D': 'PHP', 'E': 'XML', 'F': 'VB'}

1st value of dict_class_wise_prog -> Python
2nd value of dict_class_wise_prog -> Java
3rd value of dict_class_wise_prog -> C++
4th value of dict_class_wise_prog -> PHP
5th value of dict_class_wise_prog -> XML
6th value of dict_class_wise_prog -> VB

Accessing Keys

Using keys() function

# Dictionary string key value pair example 4

dict_class_wise_prog = {'A':'Python', 'B':'Java', 'C':'C++', 'D':'PHP', 'E':'XML', 'F':'VB'}
print("\nList of key value pair of dict_class_wise_prog ->", dict_class_wise_prog)

#Accessing all keys

print("\nKeys of dict_class_wise_prog ->", dict_class_wise_prog.keys())

PYTHON STRING KEY VALUE IN DICTIONARY : Output

List of key value pair of dict_class_wise_prog -> {'A': 'Python', 'B': 'Java', 'C': 'C++', 'D': 'PHP', 'E': 'XML', 'F': 'VB'}

Keys of dict_class_wise_prog -> dict_keys(['A', 'B', 'C', 'D', 'E', 'F'])

In the above example, we have listed all the keys of dictionary dict_class_wise_prog by using keys() function.

Using list() function

# Dictionary string key value pair example 5

dict_class_wise_prog = {'A':'Python', 'B':'Java', 'C':'C++', 'D':'PHP', 'E':'XML', 'F':'VB'}
print("\nList of key value pair of dict_class_wise_prog ->", dict_class_wise_prog)

#Accessing all keys

print("\n1st key of dict_class_wise_prog ->", list(dict_class_wise_prog.keys())[0])
print("2nd key of dict_class_wise_prog ->", list(dict_class_wise_prog.keys())[1])
print("3rd key of dict_class_wise_prog ->", list(dict_class_wise_prog.keys())[2])
print("4th key of dict_class_wise_prog ->", list(dict_class_wise_prog.keys())[3])
print("5th key of dict_class_wise_prog ->", list(dict_class_wise_prog.keys())[4])
print("6th key of dict_class_wise_prog ->", list(dict_class_wise_prog.keys())[5])

PYTHON STRING KEY VALUE IN DICTIONARY : Output

List of key value pair of dict_class_wise_prog -> {'A': 'Python', 'B': 'Java', 'C': 'C++', 'D': 'PHP', 'E': 'XML', 'F': 'VB'}

1st key of dict_class_wise_prog -> A
2nd key of dict_class_wise_prog -> B
3rd key of dict_class_wise_prog -> C
4th key of dict_class_wise_prog -> D
5th key of dict_class_wise_prog -> E
6th key of dict_class_wise_prog -> F

In the above example, we have used the list() function to print the individual key of dictionary dict_class_wise_prog.

Counting No of Keys

# Dictionary string key value pair example 6

dict_class_wise_prog = {'A':'Python', 'B':'Java', 'C':'C++', 'D':'PHP', 'E':'XML', 'F':'VB'}
print("\nList of key value pair of dict_class_wise_prog ->", dict_class_wise_prog)

print("\nNumber of key value pair in dict_class_wise_prog ->", len(dict_class_wise_prog))

PYTHON STRING KEY VALUE IN DICTIONARY : Output

List of key value pair of dict_class_wise_prog -> {'A': 'Python', 'B': 'Java', 'C': 'C++', 'D': 'PHP', 'E': 'XML', 'F': 'VB'}

Number of key value pair in dict_class_wise_prog -> 6

In the above example, we have used len() function to print the number of key value pair in the dictionary dict_class_wise_prog.

PYTHON STRING KEY VALUE IN DICTIONARY : Output

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PYTHON STRING KEY VALUE IN DICTIONARY