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In Python, fetching characters with odd frequencies from a given string can be a very common task in text processing and data analysis. In this article, we will learn various methods to fetch the odd frequency characters of a string in Python. Using a Dictionary Dictionaries are very convenient when there is a need to keep track of the frequencies of elements Approach To get the odd frequency elements, We will iterate through the entire string, and for each character in the string, we will increment the character count in the dictionary. At the end of the iteration, we will ... Read More
In Python, creating a list of tuples is a flexible data structure for storing many items. Tuples are immutable, ordered collections that are suitable for grouping similar items. This tutorial will guide you through this with several examples to build and handle lists of tuples. Understanding Tuples Tuples are ordered collections of elements. Lists are mutable collections of elements enclosed in square brackets, that combine with tuples to form a list of tuples. List comprehension gives compact code. It also unpacks and assigns variables to each member necessary for quick access. Nesting tuples within lists ... Read More
GTK+ 3 is a sophisticated and used graphical user interface library (GUIs). It comes with an extensive range of tools and widgets for creating cross-platform interactive and appealing apps. Let us concentrate on the fundamentals of GTK+ 3 and its box layout to manage and arrange widgets within a window. Setup Windows users require the Windows Subsystem for Linux (WSL). It uses Linux commands and PyGObject in Windows contexts. This simplifies access to libraries and GObject Introspection bindings. When you have it: pip install PyGObject sudo apt install libcairo2-dev python3-gi gir1.2-gtk-3.0gcc libgirepository1.0-dev gobject-introspection pkg-config ... Read More
In this article, we will learn various methods to iterate through the list of dictionaries in Python. When working with data in Python, it is very common to encounter scenarios where you have a list of dictionaries. Each dictionary represents an individual data entry, and you need to perform operations or extract specific information from these dictionaries. Using a For Loop and Dictionary Access Methods The approach is to use a for loop to iterate through each dictionary in the list. Inside the loop, we can use dictionary access methods like keys(), values(), or items() to retrieve the keys, values, ... Read More
Introduction This C program calculates the most limited separation between two given hubs in a bidirectional weighted chart by evacuating any K edges. It utilizes an altered form of Dijkstra's calculation, considering the expulsion of K edges as a limitation. The program utilizes a need line for effective hub determination, and powerfully alters the edge weights based on the expulsion imperative. By navigating the chart and finding the briefest way, it gives the least remove between the given hubs whereas bookkeeping for the expulsion of K edges. Approach 1: Modified Dijkstra's Algorithm Algorithm Step 1: Create a structure ... Read More
Pyspark is the library which provides the interface to Apache spark. The Apache spark is the distributed computing system to process the large datasets. We have the feasibility in pyspark to write the spark applications using python apart of the traditional languages Java and Scala. Verifying for a substring in a PySpark Pyspark provides the dataframe API which helps us in manipulating the structured data such as the SQL queries. It can read various formats of data like parquet, csv, JSON and much more. It provides the features to support the machine learning library to use classification, regression, ... Read More
Checking horoscope using Python Python is used in many applications all over the world. One of the applications is to check the horoscope on that day or day after using the Beautifulsoup of the python language. The following are the steps to be followed to check the horoscope using python. Installing the beautifulsoup Firstly, we have to install the beautifulsoup package in our python working envinornment. The below is the code. pip install bs4 The output of installing the beautifulsoup is as follows. Collecting bs4 Downloading bs4-0.0.1.tar.gz (1.1 kB) Preparing metadata (setup.py): started ... Read More
Introduction Graph theory allows us to study and visualize relationships between objects or entities. In the current technology of computer science, graph traversal plays a crucial role in exploring and analyzing different types of data structures. One of the crucial operations performed on graphs is traversal - visiting all vertices or nodes, following specific paths. DFS traversal, based on a depth-first approach, allows us to explore the depths of a graph before backtracking and exploring other branches. In this article, we will involve in implementing DFS traversal using an adjacency matrix representation in C. DFS traversal using Adjacency Matrix ... Read More
In this article, we will learn various methods to iterate over words of a string in Python. Understanding how to access and manipulate words in a string is a very important skill for any Python programmer, as it allows for efficient text processing and analysis. We will discuss the problem statement and provide solutions using different approaches in Python. Using the split() Method Syntax string.split(separator, maxsplit) The split() method takes two optional parameters: separator and maxsplit. By default, the separator is any whitespace, and maxsplit is −1, which means the method will split the string at every occurrence of ... Read More
PyMongo is one of the libraries in python which provides a way to interact with the MongoDB , the most popular NoSQL document oriented database. It allows the developers to easily connect with the mongoDB instances and interact with the databases and collections, insert and retrieve the documents and other various operations. Cursors in PyMongo A cursor in MongoDB is an object that points to the documents. When we execute the find() method by passing a search query as a parameter, the results of the given query are returned in the form of a cursor object. By iterating ... Read More