Flexible path10 sections

Python Backend

Python backend interview preparation grounded in real service development.

A backend-focused Python preparation path covering language semantics, typing, FastAPI, Django, concurrency, data access, testing, security, background work, reliability, and production diagnosis.

Recommended start

Python Language & Typing

Python names and objects, mutability, collections, iteration, functions, resource handling, type contracts, imports, and dependency environments.

24 drillsSection 1 of 10

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Learning path

10 active sections / 238 drills

1Python Language & TypingRecommended startPython names and objects, mutability, collections, iteration, functions, resource handling, type contracts, imports, and dependency environments.24 drillsSection 1Open section 2FastAPI & API DesignFastAPI request flow, dependencies, validation, errors, sync and async handlers, and reliable HTTP API boundaries.34 drillsSection 2Open section 3Django BackendDjango request lifecycle, ORM boundaries, middleware, settings, migrations, and maintainable backend services.24 drillsSection 3Open section 4Async & ConcurrencyEvent loops, blocking work, tasks, cancellation, threads, processes, synchronization, and concurrency limits.24 drillsSection 4Open section 5Data Access & SQLSQLAlchemy and Django ORM sessions, transactions, loading, migrations, pooling, and production database behavior.24 drillsSection 5Open section 6Testing & Qualitypytest fixtures, parametrization, isolation, async tests, integration boundaries, and maintainable test suites.24 drillsSection 6Open section 7Security & AuthenticationValidation, secrets, authentication integration, authorization, framework security boundaries, and common backend threats.24 drillsSection 7Open section 8Caching & Background WorkRedis, cache consistency, task ownership, retries, job idempotency, worker lifecycles, and stale work.24 drillsSection 8Open section 9Production & PerformanceASGI and WSGI deployment, process models, profiling, memory, observability, scaling, and incident diagnosis.24 drillsSection 9Open section 10Python Backend Practical LabsFocused Python implementation, debugging, code-review, integration, and production diagnosis exercises.12 drillsSection 10Open section