01
Core Python
Language depth — the floor for every Python backend interview.
- Types, OOP, decorators, and generators
- Memory model, GIL, and concurrency
- Stdlib patterns and scenario drills
Python · Core language + FastAPI backend
PythonTrack
Two modules in one track — Core Python for language depth, FastAPI for production API engineering.
Backend loops test Python mechanics and API design — start with fundamentals, then ship APIs.
Free guides from types and GIL through auth, databases, and deployment.
Free guides · Core Python first, then FastAPI
What you'll master
22 topics across two modules — language first, then FastAPI production engineering.
02
Python with FastAPI
Production APIs — frameworks, data, auth, and deployment.
- FastAPI routing, Pydantic, and OpenAPI
- SQLAlchemy, JWT, and background tasks
- Testing, Docker, and API system design
03
Interview-ready
Defend trade-offs across language and backend rounds.
- Output prediction and debugging scenarios
- Architecture and scaling discussions
- Full-stack pairing with frontend or Gen AI tracks
Two modules
Pick your starting module
Start with Core Python for language depth, then move to FastAPI for API engineering.
Module 1
Core Python
Language fundamentals — types, OOP, decorators, generators, memory, GIL, concurrency, and stdlib patterns.
Types & OOPGIL & async
Open Core PythonModule 2
Python with FastAPI
Backend APIs — FastAPI, Pydantic, SQLAlchemy, JWT auth, testing, deployment, and system design.
FastAPI & PydanticAuth & deployment
Open Python with FastAPI