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Python Context Managers: Writing Clean Resource Handling with `with` Statements

Python Context Managers: Writing Clean Resource Handling with `with` Statements

Everyone learns with open(...) and stops. That is a shame, because the protocol behind it is two methods and it solves a whole category of bug: cleanup that does not happen on the paths you forgot a

#Python#Context managers#With statement+2 tags
Python
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Python Dataclass Patterns: Slots, Frozen Instances, and Field Validation

Python Dataclass Patterns: Slots, Frozen Instances, and Field Validation

Quick Tip Reach for @dataclass(slots=True, frozen=True) with a post_init check and you get a small, immutable, validated value object in about five lines. The Problem The problem

#Python#Dataclass#Slots+3 tags
Python
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Python Async HTTP Requests with aiohttp: Fetch Multiple URLs Concurrently

Python Async HTTP Requests with aiohttp: Fetch Multiple URLs Concurrently

Quick Tip Reuse one aiohttp session, fan your requests out with asyncio.gather, and cap them with a semaphore to fetch hundreds of URLs in the time one loop would take. The Problem **The

#Python#Aiohttp#Asyncio+3 tags
Python
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Optimizing your python code with __slots__?

Optimizing your python code with __slots__?

Memory optimization with slots Understanding the problem Optimizing data models in big data workflows with slots In big data and MLOps workflows, you often work with massive

#Python#MemoryOptimization#DataScience+4 tags
Python
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List S3 Buckets

List S3 Buckets

Overview Multi-profile S3 management Ever juggled multiple AWS accounts and needed a quick S3 bucket inventory across all of them? This Python script handles it. Use case Perfect for or

#Python#Boto3#AWS+5 tags
Python
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