Python - Hard Articles
Find Co-ordinates of Contours using OpenCV | Python
In this article, we will learn how to find the co-ordinates of Contours with the help of OpenCV. Contours are defined as the line joining… Read More
Image-Processing
OpenCV
Python-OpenCV
Python
Python | Group strings at particular element in list
Sometimes, while working with Python list, we can have a problem in which we have to group strings in a way that at occurrence of… Read More
Python list-programs
Python
SymPy | Subset.cardinality() in Python
Subset.cardinality() : cardinality() is a sympy Python library function that returns the number of all possible subsets. Syntax : sympy.combinatorics.subset.Subset.cardinality() Return : number of all… Read More
Python
Python | Visualizing O(n) using Python
Introduction Algorithm complexity can be a difficult concept to grasp, even presented with compelling mathematical arguments. This article presents a tiny Python program that shows… Read More
Python
Python Programs
Python | Sorting string using order defined by another string
Given two strings (of lowercase letters), a pattern and a string. The task is to sort string according to the order defined by pattern and… Read More
Python string-programs
python-lambda
Python-sort
Sorting Quiz
Python
Python program to print calendar of given year
Given a valid year as input, write a Python program to print the calendar of given year. In order to do this, we can simply… Read More
Python
Python Programs
Python program to find the first day of given year
Given a year as input, write a Python to find the starting day of the given year. We will use the Python datetime library in… Read More
Python Calander-module
Python
Python Programs
Determine the class of a Scala object
To determine the class of a Scala object we use getClass method. This method returns the Class details which is the parent Class of the… Read More
Scala-OOPS
Python
Scala
Print all the peaks and troughs in an Array of Integers
Given an array of integers arr[], the task is to print a list of all the peaks and another list of all the troughs present… Read More
Traversal
Arrays
DSA
Python
Python | Count keys with particular value in dictionary
Sometimes, while working with Python dictionaries, we can come across a problem in which we have a particular value, and we need to find frequency… Read More
Python dictionary-programs
Python
Python Programs
Python PIL Attributes | Image.height method
PIL is the Python Imaging Library which provides the python interpreter with image editing capabilities. The Image module provides a class with the same name… Read More
Python-pil
Python
Django URL patterns | Python
Prerequisites: Views in Django In Django, views are Python functions which take a URL request as parameter and return an HTTP response or throw an… Read More
Python Django
Python
Web Technologies
Circle Detection using OpenCV | Python
Circle detection finds a variety of uses in biomedical applications, ranging from iris detection to white blood cell segmentation. The technique followed is similar to… Read More
Image-Processing
OpenCV
Python-OpenCV
Python
Python | Ways to determine common prefix in set of strings
Given a set of strings, write a Python program to determine common prefix from a set of strings. Given below are a few methods to… Read More
Python string-programs
Python
Python Programs
Python | Ways to find nth occurrence of substring in a string
Given a string and a substring, write a Python program to find the nth occurrence of the string. Let’s discuss a few methods to solve… Read More
Python string-programs
Python
Python Programs
Python PIL | BoxBlur() method
PIL is the Python Imaging Library which provides the python interpreter with image editing capabilities. The ImageFilter module contains definitions for a pre-defined set of… Read More
Image-Processing
Python-pil
Python
Python | Database management in PostgreSQL
PostgreSQL is an open source object-relational database management system. It is well known for its reliability, robustness, and performance. PostgreSQL has a variety of libraries… Read More
Python-database
Python
Simplex Algorithm – Tabular Method
Simplex Algorithm is a well-known optimization technique in Linear Programming. The general form of an LPP (Linear Programming Problem) is Example: Let’s consider the following maximization… Read More
Python
Python | os.dup() method
OS module in Python provides functions for interacting with the operating system. OS comes under Python’s standard utility modules. This module provides a portable way… Read More
python-os-module
Python
Reading Python File-Like Objects from C | Python
Writing C extension code that consumes data from any Python file-like object (e.g., normal files, StringIO objects, etc.). read() method has to be repeatedly invoke… Read More
Python-ctype
Python
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