What is meant by dictionary in python?Give suitable example.

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Aryan Kumar · Answer

In Python, a dictionary is a data structure that stores a collection of key-value pairs, where each key maps to a specific value. It is also known as an associative array, hash map, or simply a map.

Dictionaries in Python are created using curly braces {} with key-value pairs separated by colons :

You can access the values in a dictionary using their keys. For example, to get the age of "Alice", you can use the following code:

ages = {'Alice': 25, 'Bob': 30, 'Charlie': 35}
print(ages['Alice'])  # Output: 25

Dictionaries in Python are very versatile and can be used in a wide range of applications, such as data analysis, machine learning, and web development.

Krishnapriya Rajeev · Answer

Dictionaries in Python are used to store data values in a key: value pair; this is unlike other data types that can hold only single values as an element. It contains ordered mutable and non-duplicate values. We can create a dictionary in Python as follows: The values stored in a dictionary can be of any data type, and can also be duplicated. The keys, however, cannot be duplicated and must be immutable. The keys are also case-sensitive We can add elements to a dictionary by using a new index key and assigning the required value to it. To update the items within a dictionary, we can use the update() method. If the item does not exist in the dictionary, it will be added.

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What is meant by dictionary in python?Give suitable example.

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