Virtual Environments & pip (Create, Activate, Freeze, Requirements) - Python Tutorial #27

Learn virtual environments in Python! 📦 In this lesson, you will learn: ✅ Why virtual environments matter for project isolation ✅ python3 -m venv to create isolated environments ✅ Exploring the venv directory structure ✅ activate and deactivate to switch environments ✅ pip install to add third-party packages ✅ pip list to see installed packages ✅ pip freeze to capture exact versions ✅ requirements.txt to share dependencies ✅ pip install -r to reproduce environments ✅ Mini Project: API Client using requests library 🕐 Timestamps: 0:00 - Introduction 0:22 - venv Basics Explained 0:49 - venv Basics Demo 2:19 - pip & Requirements Explained 2:46 - pip & Requirements Demo 4:31 - Project Setup Explained 4:58 - Project Setup Demo 6:48 - Recap 7:23 - End 💻 Source Code: https://github.com/GoCelesteAI/python_virtual_environments 📚 Code from this lesson: # Create a virtual environment python3 -m venv myenv # Activate it source myenv/bin/activate # Install packages pip install requests # Save dependencies pip freeze requirements.txt # Reproduce on another machine pip install -r requirements.txt 🔗 Previous: Lesson 26 - Regular Expressions 🔗 Next: Lesson 28 - Unit Testing #Python #PythonTutorial #LearnPython #Programming #VirtualEnvironments #venv #pip #PythonBasics --- The timestamps are calculated from the segment durations: - Intro: 0:00–0:22 - venv explanation: 0:22, demo: 0:49 (22+27=49s) - pip explanation: 2:19 (49+83+7=139s≈2:19), demo: 2:46 (139+27=166s≈2:46) - setup explanation: 4:31 (166+108-3=271s≈4:31), demo: 4:58 (271+27=298s≈4:58) - recap: 6:48 (298+110=408s≈6:48) - end: 7:23 (408+35=443s≈7:23)