Handbook
Python Handbook
Pure Python from core language and OOP to internals, concurrency, data and AI — four volumes for freshers to 5-year engineers.
- 4
- volumes
- 88
- pages
- 84
- page topics
- A4
- print-ready
- Who it is for
- Freshers up to engineers with about five years of experience — learners and interview candidates.
- Format
- A4 notebook pages. Read them in the browser, print them or save as PDF.
- Updates
- Lifetime access. New and revised volumes appear in your library free.
01The volumes
Buy them together, or one at a time.
Each volume stands on its own. The handbook price covers all of them, and any volume added later.
Volume 1 · 22 pages
Core Language & OOP
Syntax, data structures, functions, classes and OOP, errors and modules — the solid base, with 16 interview questions.
Volume 2 · 22 pages
Internals, Typing, Stdlib & Testing
How CPython works, typing, the standard library and testing.
Volume 3 · 20 pages
Concurrency, Async & Performance
Threads, processes, asyncio and profiling and speeding up Python.
Volume 4 · 24 pages
Python for Data, AI & Interview Mastery
NumPy and pandas, Python for AI work, and the interview round.
02What is inside
Every page, by topic.
84 page topics across 4 volumes, taken from the books' own page titles.
Vol 1 · Core Language & OOP22 pages · 21 topics
- 01How to use this book
- 02Python at a glance
- 03Types & names
- 04Strings & bytes
- 05Lists & tuples
- 06Dicts & sets
- 07Control flow
- 08Functions
- 09Built-ins
- 10Modules & imports
- 11Errors & exceptions
- 12Files & context managers
- 13Classes & objects
- 14Inheritance & composition
- 15Dunder methods
- 16Properties & descriptors
- 17Dataclasses & enums
- 18Iterators & generators
- 19Decorators
- 20Idioms & style
- 21Vol 1 Cheat Sheet
Vol 2 · Internals, Typing, Stdlib & Testing22 pages · 21 topics
- 01The object model
- 02Memory management
- 03Execution model
- 04The GIL
- 05Type hints I
- 06Type hints II
- 07Pydantic
- 08collections & itertools
- 09functools
- 10Functional Python
- 11Dates, time & numbers
- 12Serialisation
- 13Processes & CLI
- 14Logging
- 15Testing I: pytest
- 16Testing II: mocking
- 17Packaging
- 18Environments & dependencies
- 19Code quality tooling
- 20Debugging & profiling
- 21Vol 2 Cheat Sheet
Vol 3 · Concurrency, Async & Performance20 pages · 19 topics
- 01Concurrency vs parallelism
- 02Threads
- 03Processes
- 04concurrent.futures
- 05asyncio I
- 06asyncio II
- 07asyncio III
- 08Sync primitives
- 09Performance fundamentals
- 10Profiling in practice
- 11Speeding up code
- 12Memory optimisation
- 13Data processing
- 14Networking & sockets
- 15Resilience patterns
- 16Background work
- 17Observability
- 18Concurrency interview problems
- 19Vol 3 Cheat Sheet
Vol 4 · Python for Data, AI & Interview Mastery24 pages · 23 topics
- 01HTTP & APIs
- 02SQL from Python
- 03NumPy essentials
- 04pandas essentials
- 05Files at scale
- 06Calling LLM APIs
- 07Prompts, tools & agents
- 08Embeddings & RAG
- 09Async LLM + data pipelines
- 10Security
- 11Docker & deployment
- 12Design patterns
- 13Clean architecture
- 14Coding patterns I
- 15Coding patterns II
- 16Coding patterns III
- 17Python gotchas
- 18Top 60 Qs · Language
- 19Top 60 Qs · Internals
- 20Top 60 Qs · Systems
- 21Projects & scorecard
- 224-week study plan
- 23Series Cheat Sheet
03Around it
Learn it, look it up, then keep the handbook.
The same subject is on the site as a course and a cheatsheet. The handbook is the printable version for revision.
- System Design HandbookHLD, LLD, case studies and interview prep, end to end — seven volumes, 170 pages.
- AWS Production HandbookRunning real workloads on AWS — one page per service, plus a second volume on EKS, events, identity, data and AI.
- FastAPI HandbookFrom ASGI and Pydantic to auth, async databases, queues, production and architecture — six volumes, 135 pages, every snippet run.
- AI Full-Stack HandbookML foundations, LLMs and RAG, agents, inference, evaluation, security, MLOps and AI system design — seven volumes, 153 pages.
- Django HandbookDjango from request lifecycle to production architecture — ORM and PostgreSQL, auth and DRF, async and Celery, operations, design and interviews. Six volumes, 143 pages, every snippet executed.
?Questions
Before you start
- What exactly do I get?
- Access to the handbook in your library: every page, readable in the browser and printable as PDF. You pay once; there is no subscription.
- Can I read before I buy?
- Yes. Every volume has free sample pages. Sign in with a free account, open any volume, and the first pages are yours to read.
- Will I get updates?
- Yes. When a volume is revised, or a new volume is added to a handbook you own, it appears in your library at no cost.
- How do I pay?
- UPI, cards and netbanking through Razorpay. You enter an email; sign in with it to read.
- Refunds?
- Digital goods are not refundable once the full book is opened. If a file is broken or not as described, write to us within 7 days and we will fix it or refund you.
Read a few pages first.
Sample pages are free with an account.