#python on the community blog
Community posts tagged python.
ToolsPydantic v2: validate data at the edges of your Python application
Pydantic turns type hints into fast runtime validation and serialisation. Here are the core patterns for API payloads, settings and LLM outputs, plus the v2 changes that trip people up.
ToolsDuckDB: fast SQL analytics on Parquet, CSV and DataFrames without a server
DuckDB is an in-process analytical database: no server, just a library. Here is how to query files and DataFrames directly, and where it fits next to pandas, Postgres and Spark.
ToolsRuff: replacing Flake8, isort and Black with one fast linter and formatter
How to set up Ruff as both linter and formatter, which rule sets are worth enabling, and how to roll it out on an existing codebase without a giant noisy diff.
Toolsuv: one fast tool for Python packages, virtual environments and versions
uv replaces pip, virtualenv, pip-tools and pyenv-style version management with a single fast binary. Here is how the everyday workflow looks and when it is worth switching.
Tech articlesLogs, metrics and traces: a practical introduction to observability with OpenTelemetry
What each signal is for, how they fit together through trace ids, and how to instrument a Python service with OpenTelemetry without drowning in data.
Tech articlesasyncio, threads or processes? Choosing Python concurrency by workload
A practical decision guide: which Python concurrency model fits I/O-bound, CPU-bound and mixed workloads, with small runnable examples and the traps to avoid.
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