Learn Python

Membangun environment Python modern yang reproducible, minim friksi, dan siap untuk deliberate practice: venv, pip, uv, pyproject.toml, pytest, Ruff, editor, dan command workflow.

Python Syntax Survival: Membaca, Menulis, dan Menjalankan Program

10 min

Panduan syntax survival Python untuk software engineer: struktur file, indentation, expression, statement, values, names, conditionals, loops, functions, imports, I/O, dan membaca traceback.

First 20 Hours Practice Loop: Mini Project Pertama

Membangun mini project Python pertama berbasis The First 20 Hours: CLI case tracker dengan domain model, state transition, JSON persistence, error handling, testing, dan practice loop.

Python Data Model: Object, Identity, Equality, dan Mutability

Membahas fondasi data model Python untuk software engineer: object, name binding, identity, equality, mutability, aliasing, copy, mutable defaults, lifecycle, dan konsekuensi desain API.

Core Collections: list, tuple, dict, set, dan Trade-off-nya

Membahas core collections Python untuk software engineer: list, tuple, dict, set, ordering, mutability, hashability, complexity, modelling trade-off, dan praktik pada case-tracker.

Functions as Design Units

Membahas function Python sebagai unit desain: signature, parameter, return, side effect, purity, closure, higher-order function, composition, error boundary, dan refactoring procedural code.

Modules, Packages, Imports, dan Application Boundaries

Membahas module, package, import system, __init__.py, python -m, import-time side effects, circular import, dependency direction, dan application boundary untuk Python project yang maintainable.

Exceptions, Failure Semantics, dan Defensive Python

Membahas exception Python secara engineering-level: hierarchy, raise/catch, custom exception, exception chaining, failure taxonomy, defensive boundaries, logging, dan error semantics.

Iteration, Comprehension, Generator, dan Lazy Thinking

11 min

Membahas iteration model Python: iterable, iterator, for-loop protocol, comprehension, generator function, generator expression, lazy evaluation, streaming data, itertools, dan pipeline design.

Object-Oriented Python: Class, Dataclass, Protocol, dan Composition

Membahas OOP Python secara engineering-level: class, instance, attributes, methods, dataclass, value object, entity, inheritance, composition, Protocol, ABC, duck typing, dan domain modelling.

Type Hints: Static Reasoning di Dynamic Language

Membahas type hints Python untuk production engineering: gradual typing, annotations, Optional, Union, Literal, TypedDict, Protocol, Generic, NewType, type alias, mypy/pyright, dan typing strategy.

Testing with pytest: Dari Confidence ke Design Feedback

10 min

Membahas testing Python dengan pytest sebagai feedback loop desain: test discovery, assertions, fixtures, parametrization, tmp_path, monkeypatch, exception tests, CLI tests, dan test structure.

Test Architecture: Mocking, Property Testing, Contract Testing

Membahas arsitektur testing Python tingkat lanjut: fakes vs mocks, unittest.mock, monkeypatch, property-based testing dengan Hypothesis, contract tests, golden files, deterministic tests, dan strategi menghindari flaky tests.

Code Quality Tooling: Ruff, Formatting, Linting, Type Checking, CI

Membahas quality tooling Python modern: Ruff formatter/linter, import sorting, pytest, mypy/pyright, pyproject.toml, pre-commit, GitHub Actions CI, quality gates, dan workflow team.

Packaging, Dependency Management, dan Reproducible Builds

15 min

Membahas packaging Python modern: pyproject.toml, project metadata, dependencies, dependency groups, optional dependencies, build backend, editable install, lockfile, wheel, sdist, dan reproducible builds.

Standard Library as Engineering Leverage

Membahas Python standard library sebagai leverage engineering: pathlib, datetime, json, csv, argparse, logging, collections, itertools, functools, contextlib, tempfile, subprocess, sqlite3, dan modul penting lainnya.

File I/O, Serialization, dan Data Boundaries

10 min

Membahas file I/O dan serialization Python secara engineering-level: text/binary, encoding, JSON, CSV, schema boundary, validation, atomic writes, corruption handling, data migration, dan repository design.

Logging, Diagnostics, dan Runtime Visibility

Membahas logging dan diagnostics Python: logging levels, logger hierarchy, structured context, exception logging, correlation id, metrics mindset, debugging, runtime visibility, dan operational design.

Concurrency Model: Threads, Processes, GIL, dan Workload Classification

Membahas model concurrency Python: concurrency vs parallelism, GIL, thread, process, concurrent.futures, queue, locks, workload classification, race condition, deadlock, dan decision framework.

Async Python: Event Loop, Coroutine, Task, dan Backpressure

Membahas async Python secara praktis: event loop, coroutine, await, Task, TaskGroup, cancellation, timeout, semaphore, queue, backpressure, async context manager, dan design pitfalls.

Performance Engineering: Measurement Before Optimization

Membahas performance engineering Python secara profesional: measurement before optimization, latency vs throughput, profiling, benchmarking, timeit, cProfile, pstats, flame graph mindset, algorithmic complexity, dan optimization strategy.

Memory Model, Object Overhead, dan Data-Oriented Python

15 min

Membahas memory engineering Python: object model, references, object overhead, container overhead, sys.getsizeof, tracemalloc, allocation churn, __slots__, dataclass slots, streaming, and data-oriented representation.

CPython Internals for Practical Engineers

17 min

Membahas CPython internals yang praktis untuk software engineer: interpreter, bytecode, frame, code object, object model, reference counting, garbage collector, GIL, free-threading, dan implikasi desain.

API Development with Python: FastAPI, Pydantic, dan Service Boundaries

Membahas pengembangan API Python dengan FastAPI dan Pydantic: HTTP semantics, schemas, validation boundary, dependency injection, service layer, error mapping, OpenAPI, testing, dan production-ready API design.

Data Access: SQLAlchemy, Transactions, Repository, dan Unit of Work

Membahas data access Python secara production-grade: SQLAlchemy 2.x style, Engine, Session, ORM mapping, transactions, repository pattern, unit of work, migration, testing, dan boundary design.

Architecture in Python: Layering, Ports, Adapters, dan Domain Modelling

Membahas arsitektur aplikasi Python: layering, dependency rule, ports and adapters, domain model, application service, repositories, unit of work, DTOs, domain events, dan modular boundaries.

State Machines, Workflow Modelling, dan Complex Case Lifecycle

11 min

Membahas state machine dan workflow modelling di Python: finite states, transition table, guards, commands, side effects, audit trail, idempotency, concurrency, testing, dan complex case lifecycle.

Security Engineering in Python Applications

16 min

Membahas security engineering untuk aplikasi Python: threat modelling, OWASP, input validation, authn/authz, secrets, password hashing, injection, deserialization, SSRF, CORS, dependency security, logging, dan secure design.

Observability, Operations, dan Production Readiness

Membahas production readiness Python: observability, logs, metrics, traces, health checks, readiness/liveness, configuration, graceful shutdown, deployment, runbook, alerts, SLO, dan operational excellence.

Library and Framework Design: Membuat Python Code yang Enak Dipakai

Membahas desain library/framework Python: public API, ergonomics, extension points, versioning, backward compatibility, deprecation, documentation, typing, errors, packaging, dan design principles.

Migration, Modernization, dan Maintaining Python Systems

16 min

Membahas cara memodernisasi dan merawat sistem Python jangka panjang: legacy assessment, Python version upgrade, dependency upgrade, pyproject migration, typing adoption, tests, refactoring, deprecation, dan migration playbook.

Capstone Project: Production-Grade Regulatory Case Management Service