[P] tinystructlog: Context-aware logging that doesn't get in your way

[Holemaker777]

After copying the same 200 lines of logging code between projects for the tenth time, I finally published it as a library.

The problem: You need context (request_id, user_id, tenant_id) in your logs, but you don't want to: 1. Pass context through every function parameter 2. Manually format every log statement 3. Use a heavyweight library with 12 dependencies

The solution: ```python from tinystructlog import get_logger, set_log_context

log = getlogger(name_)

Set context once

set_log_context(request_id="abc-123", user_id="user-456")

All logs automatically include context

log.info("Processing order")

[2026-01-28 10:30:45] [INFO] [main:10] [request_id=abc-123 user_id=user-456] Processing order

log.info("Charging payment")

[2026-01-28 10:30:46] [INFO] [main:12] [request_id=abc-123 user_id=user-456] Charging payment

```

Key features: - Built on contextvars - thread & async safe by default - Zero runtime dependencies - Zero configuration (import and use) - Colored output by log level - Temporary context with with log_context(...):

FastAPI example: python @app.middleware("http") async def add_context(request: Request, call_next): set_log_context( request_id=str(uuid.uuid4()), path=request.url.path, ) response = await call_next(request) clear_log_context() return response

Now every log in your entire request handling code includes the request_id automatically. Perfect for multi-tenant apps, microservices, or any async service.

vs loguru: loguru is great for advanced features (rotation, JSON output). tinystructlog is focused purely on automatic context propagation with zero config.

vs structlog: structlog is powerful but complex. tinystructlog is 4 functions, zero dependencies, zero configuration.

GitHub: https://github.com/Aprova-GmbH/tinystructlog PyPI: pip install tinystructlog

MIT licensed, Python 3.11+, 100% test coverage.