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Analyzing YouTube Data: Comment Sentiment and Metadata Extraction with Python

· 7 min read
Serhii Hrekov
Senior Software Engineer & System Architect specializing in Python, Web Systems, Cloud Infrastructure & Automation

Analyzing video metrics and comment threads is a powerful way to leverage Python for data science, market research, or content optimization. By analyzing the public reception of a video, you can measure audience mood and extract key metadata features.

This guide demonstrates how to build a complete YouTube data extraction pipeline using two separate strategies:

  1. Metadata Extraction: Retrieving views, tags, categories, and upload details using yt-dlp (no API key required).
  2. Comment Sentiment Analysis: Scoping comment sections to calculate positive or negative audience polarity using the official YouTube Data API v3 and TextBlob.

Generating Stylized QR Art with Stable Diffusion & ControlNet

· 8 min read
Serhii Hrekov
Senior Software Engineer & System Architect specializing in Python, Web Systems, Cloud Infrastructure & Automation

Gone are the days of boring black-and-white squares! With the advent of advanced AI image generation models like Stable Diffusion, we can now create QR codes that are not only scannable but are also stunning works of art. This guide will walk you through the process of generating stylized QR codes that seamlessly blend into captivating images.

Generating, Styling, and Decoding Barcodes & 2D Codes in Python: Complete Guide

· 7 min read
Serhii Hrekov
Senior Software Engineer & System Architect specializing in Python, Web Systems, Cloud Infrastructure & Automation

Generating and decoding barcodes is a foundational requirement across retail, inventory logistics, digital asset tracking, and ticketing systems. In Python, creating industry-standard 1D barcodes and 2D QR codes requires only a few lines of code with specialized libraries.

Emoji.demojize() vs. clean-text Performance Comparison

· 6 min read
Serhii Hrekov
Senior Software Engineer & System Architect specializing in Python, Web Systems, Cloud Infrastructure & Automation

Performance Showdown: emoji.demojize() vs. clean-text for Emoji Handling​

When choosing a library for high-throughput text preprocessing, performance is often as important as accuracy. Both the emoji library's demojize() function and the comprehensive clean-text library can remove or replace emojis, but they serve different purposes, which impacts their speed and efficiency.

Since no direct, widely-published benchmark comparing only these two specific functions exists, this analysis focuses on their architectural differences and their respective performance profiles, based on typical NLP use cases.

Programmatically Detecting, Removing, and Converting Emojis in Python

· 7 min read
Serhii Hrekov
Senior Software Engineer & System Architect specializing in Python, Web Systems, Cloud Infrastructure & Automation

Managing emojis programmatically is a common requirement in data cleaning, sentiment analysis, and Natural Language Processing (NLP). Unlike standard ASCII characters, emojis are complex Unicode characters that can span multiple code points (such as skin tone modifiers or Zero Width Joiner sequences). Simple string searches or basic regular expressions often fail to match them correctly.

This guide provides a comprehensive walkthrough of emoji detection, extraction, stripping, conversion to descriptive shortcodes, and rendering using Python.

N8n for AI and LLM automations

· 6 min read
Serhii Hrekov
Senior Software Engineer & System Architect specializing in Python, Web Systems, Cloud Infrastructure & Automation

As the automation landscape evolves, the integration of Artificial Intelligence (AI) and Large Language Models (LLMs) into workflows has become a game-changer. n8n is particularly well-suited for this, thanks to its open, flexible architecture that allows you to connect AI services to virtually any other tool in your stack [2]. This article will explore how to leverage n8n for AI and LLM automations, providing practical examples and use cases.