Genetic Algorithm for Vehicle Routing Problem with Time Windows
Vehicle routing problems (VRP) involve designing optimal delivery or collection routes from one or several depots to a set of geographically scattered customers, subject to various constraints. The primary objective is to minimize the total travel cost, which may represent distance, time, or number of vehicles used. Each customer is visited exa ...
Posted on Sat, 10 Oct 2026 16:49:29 +0000 by phpBeginner06
Control Flow in Python: Conditional Statements and Loops
Conditional Statemants
Double Branch
if condition:
statement
# ...
else:
statement
# ...
Multiple Branches
if condition1:
statement
elif condition2:
statement
elif condition3:
statement
else:
statement
Examples
# Single branch
gpa_str = input("Enter your GPA:")
gpa = float(gpa_str)
if gpa > 3.5:
...
Posted on Sat, 10 Oct 2026 16:39:09 +0000 by ronnie88
Automating JMeter Report Screenshots with PyAutoGUI Image Recognition
Performance testing reports require a significant number of screenshots to document results. Automating this process saves time and ensures consistency. This tool utilizes the pyautogui library to control mouse and keyboard actions, locating interface buttons through pre-captured reference images. To ensure accurate image recognition, the libra ...
Posted on Sat, 10 Oct 2026 16:18:40 +0000 by g0liatH
Python Lambda Expressions, Iterators, and Exception Handling
Anonymous FunctionsIn Python, small anonymous functions can be created using the lambda keyword. Unlike standard functions defined with def, lambda functions are restricted to a single expression and do not require a name. The syntax follows the pattern: lambda arguments: expression. These are often used when a function object is required for a ...
Posted on Sat, 10 Oct 2026 16:06:58 +0000 by falian
Implementing TextIn OCR API: A Developer's Guide
Implementing TextIn OCR API: A Developer's Guide
About TextIn OCR Technology
TextIn is an intelligent optical character recognition (OCR) solution developed by Shanghai HH Technology Co., Ltd., a company with 16 years of specialized experience in the text recognition domain. The platform provides intelligent text recognition engines, products ...
Posted on Fri, 09 Oct 2026 16:45:29 +0000 by foid025
Introduction to Selenium Web Scraping
Introduction
Selenium was original an automated testing tool, but it's widely used in web scraping to handle JavaScript execution that requests libraries can't manage directly. Selenium works by driving a browser, fully simulating browser operations like navigation, input, clicks, and scrolling to obtain the rendered page results. It support ...
Posted on Fri, 09 Oct 2026 16:40:30 +0000 by jhenary
Implementing Linear Regression with Single and Multiple Variables in Python
Linear regression is a fundamental approach for modeling the relationship between a scalar response and one or more explanatory variables. This implementation explores both simple (univariate) and multiple (multivariate) linear regression using NumPy and Pandas.
Univariate Linear Regression
Simple linear regression involves a single independent ...
Posted on Fri, 09 Oct 2026 16:35:11 +0000 by rsassine
Building Custom Sequence Types in Python: A Deep Dive
Python categorizes sequence types in to several families. Container sequences (like list, tuple, and deque) can hold items of mixed types. Flat sequences (like str, bytes, bytearray, and array.array) store homogeneous data and are iterable with for loops. Mutable sequences (list, deque, bytearray, array) allow in-place modification, while immut ...
Posted on Fri, 09 Oct 2026 16:16:53 +0000 by davey10101
Singleton Pattern in Python
Introduction
Consider a practical scenario: we want to track our daily expenses. There are two approaches. The first is to record every expense in the same ledger and settle at the end of the month. The second is to use a new notebook for each expense, resulting in many notebooks at the end of the month that must be consolidated into a final st ...
Posted on Fri, 09 Oct 2026 16:14:23 +0000 by Jason_London
Essential Python Interview Concepts: Data Types, Typing, and Duck Typing
Core Python Data Types
Python supports multiple fundamental data types. Numeric types include integers (int), floating-point numbers (float), and complex numbers (complex). The string (str) type handles textual data. Sequence types such as lists (list) and tuples (tuple) store collections of elements. Dictionaries (dict) provide key-value pair ...
Posted on Fri, 09 Oct 2026 16:08:30 +0000 by tracivia