Coding

Profile and optimize Python memory with memray, tracemalloc, and objgraph. Covers leak detection, generators, __slots__, and cutting peak use.

Host a private PyPI registry with pypiserver and an npm registry with Verdaccio to cache packages. Both take under 30 minutes to set up.

Test your Python code against real PostgreSQL, Redis, and Kafka containers with Testcontainers and pytest. Drop the mocks for real services.

Hypothesis generates hundreds of random inputs to find bugs example-based tests miss, then shrinks to the smallest failing case. Works with pytest.

Cobra and Bubble Tea combine argument parsing and rich terminal UIs into one Go binary that works as both a scriptable tool and a polished app.

Alembic gives SQLAlchemy version-controlled schema migrations, tracking changes as Python scripts you can review, test, and apply anywhere.