11h ago · 2 min read · asyncio patterns I keep using in every async Python project. create_task for actual concurrency # Sequential (slow): u1 = await fetch_user(1) u2 = await fetch_user(2) # Concurrent (fast): task1 = asyncio.create_task(fetch_user(1)) task2 = asyncio.cr...
Join discussion1d ago · 4 min read · Unlock the power of Python asyncio to write efficient, non-blocking code. This asyncio tutorial covers async programming Python developers need to get started today. Asynchronous programming has become a critical skill for Python developers aiming t...
Kklement commentedFeb 8 · 13 min read · This is the third post in the series Coroutine, IO bound and Asyncio for AI. Click the image for the series index Introduction In this post, I will briefly introduce how to utilize coroutines for LLMs. Using asyncio for LLM inference is straightfor...
Join discussionJan 31 · 14 min read · This is the second post in the series Coroutine, IO bound and Asyncio for AI. Click the image for the series index Introduction I explained coroutines and asyncio in the previous post: https://sjun.hashnode.dev/1-what-are-coroutine-asyncio-io-bound...
Join discussionJan 27 · 4 min read · Introduction Async bugs in FastAPI rarely fail loudly. They pass tests.They work locally.And then they quietly break under load. A large number of issues developers blame on FastAPI or SQLAlchemy leaked connections, hanging requests, random MissingGr...
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Jan 21 · 9 min read · Introduction In many cases, we have to run several jobs concurrently. Most developers are likely familiar with multi-threading or multi-processing, both of which Python supports through ThreadPoolExecutor and ProcessPoolExecutor. However, there is an...
Join discussionJan 21 · 3 min read · If you recently upgraded to SQLAlchemy 2.0 and suddenly saw AttributeError: 'AsyncSession' object has no attribute 'query', nothing is actually broken. This error appears because SQLAlchemy 2.0 removed legacy query patterns entirely and async session...
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Jan 19 · 3 min read · Introduction If you’re using FastAPI with SQLAlchemy 2.0 async and suddenly hit a MissingGreenlet error, you’re not alone. This error usually appears when async database calls are executed outside the proper event loop context -often due to incorrect...
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