Python Articles - Page 814 of 929

Dictionaries in python are a type of data structure that map keys to values as a key-value pair. They are one of the frequently used data structures and have many interesting properties. They are presented by enclosing them in a pair of curly brace like below.dict = {'day1':'Mon' ,'day2':'Tue', 'day3':'Wed'}The elements or key-value pairs in the dictionary are represented within single quotes and separated by a colon.Creating a DictionaryWe create a dictionary by assigning values written in the form of a ke.ExampleDict1 = {'day1':'Mon' ,'day2':'Tue', 'day3':'Wed'} print(type(dict1)) print(dict1) # Using the dict() method dict2 =dict({('day1', 'Mon'), ('day2', 'Tue'), ('day3', ... Read More

Chunks of data move between the clients and servers using the User Datagram Protocol or UDP protocol. The two communicating endpoints need the IP address and port number to establish communication. One endpoint is known as the sender and the other is known as the receiver. In this protocol, the sender does not keep track of the sent packets and it is up to the receiver to accept or not all the packets.Sender ProgramThe below python program uses the socket module to create the sender’s program. We declare variables for IP address and Port. Then add a message to it. ... Read More

This module allows bidirectional conversions of color values between colors expressed in the RGB (Red Green Blue) and other color spaces. The three other color spaces it uses are YIQ (Luminance (Y) In-phase Quadrature), HLS (Hue Lightness Saturation) and HSV (Hue Saturation Value). All the coordinates can be between 0 and 1 except the I and Q values in the YIQ color space.The below tables shows the functions and their purpose.FunctionPurposePermitted Valuesrgb_to_yiqfrom RGB coordinates to YIQ coordinates0 to 1rgb_to_hlsfrom RGB coordinates to HLS coordinates0 to 1rgb_to_hsvfrom RGB coordinates to HSV coordinates0 to 1yiq_to_rgbfrom YIQ coordinates to RGB coordinates-1 to 1hls_to_rgbfrom ... Read More

In Python, a string is one of the data structures that is a sequence of characters enclosed within single quotes '' or double quotes "". It is immutable, i.e., once a string is created, it cannot be changed. When we want to check if both halves of the string have the same set of characters in Python, we can follow the steps below - First, based on the length of the string, we have to split the string into two halves. Next, convert each half into a set of characters using set() function. Finally, compare the two sets using ... Read More

In this article, we will solve the problem of checking balanced parentheses. Let's understand the problem statement, The following are the conditions for balanced parentheses − Every opening parenthesis has a corresponding closing parentheses. Parentheses should be closed in the correct order. For example, "{[()]}" is a balanced parenthesis. condiser the same example with different arrangment "{([})]" which is unbalanced parantheses. Checking parentheses Using 'list' and 'for' loop list is one of the built-in data types in Python. A Python list is a sequence of comma-separated items, enclosed ... Read More

In this article, we will be learning about the twitter sentimental analysis. We will register for twitter oAuth API, install all the dependencies and finally write our sentimental analyzer script.An API(Application programming interface) is a gateway that allows you to access some servers(Twitter) internal functionality.The prerequisite is that we have a twitter account set up with verified phone number.After this, we visit the twitters website and tap on the create a new app icon. Now we fill all the credentials i.e. name and accept the developer agreement and finally click on create.Now our app is created , on the top ... Read More

In this article, we will learn about the solution and approach to solve the given problem statement.Problem statementGiven a list iterable as input, we need to display odd numbers in the given iterable.Here we will be discussing three different approaches to solve this problem.Approach 1 − Using enhanced for loopExamplelist1 = [11, 23, 45, 23, 64, 22, 11, 24] # iteration for num in list1:    # check    if num % 2 != 0:       print(num, end = " ")Output11, 23, 45, 23, 11Approach 2 − Using lambda & filter functionsExample Live Demolist1 = [11, 23, 45, 23, ... Read More

In this article, we will learn about the solution and approach to solve the given problem statement.Problem statementGiven the starting and ending range of an interval. We need to print all the numbers in the interval given.A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.There are two for loops, first for loop is for getting the numbers in the interval and second loop for the checking whether the number is prime or not.Now let’s see the implementation.Example Live Demostart = 10 end = 29 for val in range(start, end + ... Read More

In this article, we will learn about the solution and approach to solve the given problem statement.Problem statementGiven a list iterable, we need to print all the negative numbers in the list.Here we will be discussing three approaches for the given problem statement.Approach 1 − Using enhanced for loopExamplelist1 = [-11, 23, -45, 23, -64, -22, -11, 24] # iteration for num in list1:    # check    if num < 0:       print(num, end = " ")Output-11 -45 -64 -22 -11Approach 2 − Using filter & lambda functionExample Live Demolist1 = [-11, 23, -45, 23, -64, -22, -11, ... Read More

Python Programming Language is one of the most efficient and user-friendly programming language and have endless uses and applications. Lists declared in Python are analogous to dynamically sized arrays in other programming languages (vector in C++ and ArrayList in Java). A list is simply a collection of items enclosed by [] and separated by commas. In this tutorial, we will learn about the solution and approach to find out all even numbers in a given list using Python. List is one of the most fundamental data structures in python. They are widely used and they store similar contiguous data. A ... Read More