✅ Working with External Packages (Part 1): pip & Virtual Environments In this Python tutorial, you will learn how to install and manage external Python packages using pip and virtual environments (venv). This guide is perfect for beginners and developers preparing for Python interviews. Ab tak humne sirf math , datetime aur json jaise built‑in libraries ka use kiya hai. Ab hum dekhenge ki Python community ke external packages kaise install aur manage karte hain. 🔹 Popular External Packages requests → API calls aur HTTP requests ke liye numpy → numerical computing ke liye pandas → data analysis ke liye flask → chhote web apps ke liye django → full web framework 1️⃣ What is pip? pip Python ka package manager hai jo PyPI (Python Package Index) se external libraries install karta hai. # package install karna pip install requests # Python file ke andar use import requests...