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Explore our latest articles and insights about Python.
45 posts in total
Which Python dependency manager should you use for production agent services in 2026? The install speed, lockfile story, and Docker build times compared.
How to build retry logic that handles rate limits, timeouts, and transient failures without burning money. The backoff rules and the 3 errors you must not retry.
How to use Pydantic models to force your RAG planner LLM to return structured steps. The schema, the retry loop, and why plain JSON prompts break in production.
How to stress test an agentic AI service before it ships. Concurrency, tokens, latency budgets, and the load profile that simulates real traffic.
How to load evaluation metrics dynamically in a Python eval pipeline. The registry pattern, entry points, and the test override that makes CI fast.
How to run your entire agent stack locally with Docker Compose. Postgres, Redis, the agent service, Langfuse, and the network rules that just work.
How to fix the 5 common Docker build errors in AI service Dockerfiles. apt-get failures, wheel builds, layer cache misses, and the silent bugs.
How to configure CORS for a production agentic API without wildcard origins. The allowlist, the credentials flag, and the preflight that breaks SSE.
Why FastAPI lifespan is the only right place for agent startup code. Per-worker initialization, ordered teardown, and the bugs it kills.
How async context managers prevent connection leaks in Python AI services. The lifespan, contextvars, and middleware patterns that survive load.
How to wire LangGraph into a FastAPI chatbot API with streaming, persistence, and per-user threads. The production pattern that scales past demos.
How FastAPI Depends makes agent auth testable and composable. The pattern, the chain, and why module-level globals break at scale.