Learn Python as a working developer language — scripting, APIs, data glue, and the default stack for AI agents — in ordered chapters with code, references, and iHateReading threads.
Python reads like pseudocode but production Python still demands clarity on types, packages, async, and error boundaries. Each chapter matches our roadmap template: core concepts, resources, YouTube, and related blogs.
Roadmap (Things to Learn)
What is Python used for in 2026?
- Backend APIs — FastAPI, Django, Flask
- Automation & scraping — scripts, notebooks, pipelines
- AI & agents — OpenAI Agents SDK, LangGraph, smolagents, notebooks
- Data & ML glue — not a full ML course here, but you'll know how Python fits the stack
YouTube learning
What Is It?
The Python track on iHateReading walks from interpreter basics to production habits: packages, async I/O, typing, and common web/agent libraries.
Each chapter is standalone enough to revisit, but the sidebar order builds concepts in a sensible stack.
This is a developer roadmap — scripting, APIs, and glue code — not a machine-learning math curriculum.
Why Should I Care?
Python is the default language for backend services, automation, data scripts, and most AI agent SDKs in 2026.
Skipping fundamentals makes framework magic frustrating when pip, imports, or the GIL show up in incidents.
Real World Analogy
This roadmap is a workshop layout: benches for syntax and data structures, then power tools for async, testing, and the FastAPI/agent ecosystem.
Visual Mental Model
Getting Started -> Syntax -> Functions
-> Data structures -> Async
-> Errors/Testing -> Ecosystem -> InterviewsBeginner Explanation
Use this hub to see the full path. Python 3 only — venv plus pip on every project, typing when teams ask for it, pytest before you trust refactors.
Smallest Possible Example
name = "iHateReading"
print(f"Hello, {name}")Common Mistakes
❌ Installing packages globally on your laptop.
Use a virtual environment per project so dependencies do not fight across repos.
❌ Learning Python 2 tutorials by accident.
Python 2 is dead. Confirm examples use print() functions and modern syntax.
❌ Skipping testing because scripts feel small.
Small scripts become cron jobs. pytest saves you when they run at 3 a.m.
Real Project Example
Instagram and Dropbox scaled large Python backends; FastAPI powers modern API startups.
Agent teams at OpenAI, Anthropic, and Hugging Face ship Python SDKs you will import daily.
Build This Mini Project
List each chapter title and write which real task it helps with (API, script, test, deploy). Create a venv and run one line from the getting-started page.
Interview Question
Why learn core Python before FastAPI or agent frameworks?
Frameworks are thin layers over imports, exceptions, async, and data structures. Without those, you cannot debug request lifecycle bugs, packaging issues, or performance limits like the GIL.
Key Takeaways
- Follow chapter order on first pass.
- venv + pip every project.
- Python 3 only.
- Hub pages orient; depth lives in child chapters.
