Found 10476 Articles for Python

Collections in Python

Kavya Elemati
Updated on 24-Apr-2023 16:47:24

5K+ Views

In python, collections are the containers used for storing the data. The built-in data structures in python are tuples, lists, sets and dictionaries. The collections class will provide additional data structures apart from the built-in data structures. Some of the data structures in the ‘collections’ module − Counter namedTuple orderedDict defaultDict Deque chainMap Counter It is the type of collection in which the elements will be stored as dictionary keys and the counts will be stored as dictionary values. Whenever you want to calculate the frequency of any item in a list, traditionally you would use a ... Read More

Python Program To Add Elements To A Linked List

Kavya Elemati
Updated on 24-Apr-2023 16:44:53

1K+ Views

What is a Linked List When data is not stored in continuous memory locations, it takes a lot of time to search all the memory locations to get the required data. To prevent this, we use Linked Lists. A linked list in Python is a data structure that stores items in an ordered sequence. It consists of nodes, where each node contains the item and a reference to the next node in the list. The first node is known as the head, while the last one is referred to as tail. Linked lists are used for efficient insertion and deletion ... Read More

Python Program to get first and last element from a Dictionary

Utkarsha Nathani
Updated on 24-Apr-2023 13:24:14

24K+ Views

Python is an interpreted, object–oriented, high level, programming language with dynamic semantics. Developed by Gudio Van Rossum in 1991. It supports multiple programming paradigms, including structured, object-oriented and functional programming. Before diving deep into the topic let’s first brush up the basic concepts related to the question provided to us. A dictionary is a group of items that are unique, changing, and ordered. Curly brackets are used in dictionary writing, and they contain keys and values: The key name can be used to refer to dictionary objects. Data values are kept as key:value pairs in dictionaries. Ordered and unordered ... Read More

Python program to remove null values from a dictionary

Utkarsha Nathani
Updated on 24-Apr-2023 12:08:57

3K+ Views

Dictionaries are known as the collection data types. They store data in the form of key value pair. They are ordered and changeable i.e., they follow a particular sequence and are indexed. We can change the values for a key and therefore it is manipulative or changeable. Dictionaries does not support duplication of data. Each key can have multiple values associated with it but a single value cannot have more than one key. We can use dictionaries to perform numerous operations. The entire mechanism depends upon the stored values. In this article, we will discuss the techniques that can be ... Read More

Python Program To Find The Largest Element In A Dictionary

Utkarsha Nathani
Updated on 24-Apr-2023 12:07:45

304 Views

Dictionaries are used to store data values in key:value pairs like maps (which unlike other data types holds only a single value as an element). key:value is provided in dictionaries to make it more effective. Keys are unique. Dictionary key must be unique. So, no duplicate values are allowed in dictionaries. Dictionaries items are ordered, changeable, immutable. Changeable means here is that, we can add or remove items after the dictionaries are created. In this article, we will know about how to find a largest element in a dictionary by using different functions. There are many functions to find ... Read More

Python Program to Search an Element in a Dictionary

Utkarsha Nathani
Updated on 24-Apr-2023 12:05:23

19K+ Views

Dictionaries are used to store data values in key:value pairs like maps (which unlike other data types holds only a single value as an element). key:value is provided in dictionaries to make it more effective. Keys are unique. Dictionary key must be unique. So, no duplicate values are allowed in dictionaries. Dictionaries items are ordered, changeable, immutable. Changeable means here is that, we can add or remove items after the dictionaries are created. In this article, we will know about how to search an element in dictionary by using different functions. There are many functions to search an element ... Read More

Python Program to Add Elements to a Dictionary

Utkarsha Nathani
Updated on 24-Apr-2023 12:03:01

191 Views

High-level, all-purpose Python is a very well-liked programming language. Python is utilised for cutting-edge software development projects like web development and machine learning applications. In this article, we will be learning various methods for adding elements to a dictionary. What do You Understand From Dictionary in Python? A dictionary in Python stores a key: value pair, unlike other Data Types that only contain a single value as an element. It is used to store data values like a map. The dictionary includes key-value pairs to help it become more efficient. In a dictionary, each key-value pair is separated ... Read More

Python Program To Create A Dictionary With A Dictionary Literal

Utkarsha Nathani
Updated on 24-Apr-2023 12:00:28

1K+ Views

Dictionaries are used to store data values in key:value pairs like maps (which unlike other data types holds only a single value as an element). key:value is provided in dictionaries to make it more effective. Keys are unique. Dictionary key must be unique. So, no duplicate values are allowed in dictionaries. Dictionaries items are ordered, changeable, immutable. Changeable means here is that, we can add or remove items after the dictionaries are created. In python, dictionaries are defined as object with the data type ‘dict’. The values in dictionaries items can be of any data type like string, integer, Boolean ... Read More

Python Program to Calculate the Symmetric Difference Between Two Lists

Utkarsha Nathani
Updated on 24-Apr-2023 11:56:01

887 Views

In python, multiple items can be kept in a single variable by using lists. One of the four built-in data types in Python for storing data collections is the list; the other three are the tuple, set, and dictionary, each of which has a unique purpose. What is List? Square brackets are used to build lists. The most effective tool in Python is the list because they don't necessarily have to be homogeneous. Data-Types like Integers, Strings, and Objects can all be found in one list. Because lists are mutable, changes can be made to them even after they ... Read More

Python Program to Rotate Elements of a List

Utkarsha Nathani
Updated on 24-Apr-2023 11:53:46

3K+ Views

Lists can be used in Python to maintain several items in a single variable. The list is one of Python's four built-in data types for storing data collections. The other three, tuple, set, and dictionary, each serve a different function. Lists are constructed using square brackets. Because lists don't have to be homogeneous, they are the most useful tool in Python. One list contains Data-Types like Strings, Objects, and Integers. Lists can be modified after they have been generated because they are mutable. The focus of this article is on shorthand and many quick ways to say this in ... Read More

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