---
title: "Yoosuf Ahamed (@CodeByYuus) | Hashnode"
description: "Turning ideas into code and data into insights. Read the latest articles by Yoosuf Ahamed on Hashnode."
url: "https://hashnode.com/@CodeByYuus"
---

@CodeByYuus

# Yoosuf Ahamed

@CodeByYuus · Colombo, Sri Lanka · Joined November 2025

Turning ideas into code and data into insights.

### [The 80% Reality of Data Science: Why Data Cleaning Dominates Professional Workflows](https://yuusvision.hashnode.dev/the-80-reality-of-data-science?utm_source=hashnode&utm_medium=feed)

Forget the glamorous algorithms. The real work in data science happens in the trenches of data quality.

7 min read · [yuusvision.hashnode.dev](https://yuusvision.hashnode.dev/the-80-reality-of-data-science?utm_source=hashnode&utm_medium=feed)

[Jun 14](https://hashnode.com/posts/the-80-reality-of-data-science/6a2e717de9aed5f016df554a)

### [Why Environment Variables Exist (.env Files Explained)](https://yuusvision.hashnode.dev/why-environment-variables-exist-env-files-explained?utm_source=hashnode&utm_medium=feed)

Stop Hardcoding API keys. It's dangerous, and there is a better way

3 min read · [yuusvision.hashnode.dev](https://yuusvision.hashnode.dev/why-environment-variables-exist-env-files-explained?utm_source=hashnode&utm_medium=feed)

[Dec 26, 2025](https://hashnode.com/posts/why-environment-variables-exist-env-files-explained/694ebf31bda3866843e03528)

### [How Dependency Conflicts Break Group Projects 💥](https://yuusvision.hashnode.dev/how-dependency-conflicts-break-group-projects?utm_source=hashnode&utm_medium=feed)

Student group projects fail due to dependency conflicts and environment drift. Learn how Python virtual environments prevent “it works on my laptop” errors.

3 min read · [yuusvision.hashnode.dev](https://yuusvision.hashnode.dev/how-dependency-conflicts-break-group-projects?utm_source=hashnode&utm_medium=feed)

[Dec 18, 2025](https://hashnode.com/posts/how-dependency-conflicts-break-group-projects/694394cac1a095cbde54bb13)

### [Why “It Works on My Laptop” Is a Real Engineering Problem](https://yuusvision.hashnode.dev/why-it-works-on-my-laptop-is-a-real-engineering-problem?utm_source=hashnode&utm_medium=feed)

Why ‘It Works on My Laptop’ Is Costing Students Time, Grades, and Credibility—and How Industry Practices Solve It

4 min read · [yuusvision.hashnode.dev](https://yuusvision.hashnode.dev/why-it-works-on-my-laptop-is-a-real-engineering-problem?utm_source=hashnode&utm_medium=feed)

[Dec 16, 2025](https://hashnode.com/posts/why-it-works-on-my-laptop-is-a-real-engineering-problem/69419db431d32399b0f82d60)

### [Learn Web Scraping with Python: Build Your Own Datasets from Scratch](https://yuusvision.hashnode.dev/python-web-scraping-create-custom-datasets?utm_source=hashnode&utm_medium=feed)

Don't wait for Kaggle, If your data exist on web, you can get it

6 min read · [yuusvision.hashnode.dev](https://yuusvision.hashnode.dev/python-web-scraping-create-custom-datasets?utm_source=hashnode&utm_medium=feed)

[Dec 5, 2025](https://hashnode.com/posts/python-web-scraping-create-custom-datasets/69330e6d5550c259e9fe2fe7)