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Illustration of a Python list being converted into a single iterator block by the iter() built-in, with a one-way arrow showing single-pass iteration.
Python

Python iter(): How the Built-in Function Works

Illustration of Python pika connecting to RabbitMQ with queues, exchanges, and routing keys, emphasizing message acknowledgement flow.
Python

Python Pika: Queues, Exchanges, Routing Keys, and Acknowledgements

Comparison of two Python Kafka client libraries with code snippets and a scale icon.
Python

Python Kafka: kafka-python vs Confluent Client

Illustration of Kafka partition offsets and manual commit flow in a Python consumer
Python

Python Kafka Offsets, Partitions, and Manual Commits

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Latest Python Posts

A visual metaphor for Python threading: multiple threads weaving through a shared resource, with a lock icon representing synchronization.
Python

Python Threading: A Practical Guide

Use Python threading for I/O-bound tasks: create and start threads, share state safely with locks, and understand where the GIL matters.

threadingconcurrencyGILmultithreading
Diagram comparing synchronous generator and async generator execution flow in Python
Python

Python Async Generator vs Generator: Key Differences

Python async generator vs generator: Understand the differences in syntax, execution model, memory behavior, and when to use each.

async-awaitgeneratorsasynciocoroutines
Illustration of asyncio.TaskGroup managing multiple concurrent tasks in Python
Python

Python asyncio TaskGroup: Structured Concurrency

Learn how to use asyncio.TaskGroup for structured concurrency in Python: creating tasks, handling exception groups, and understanding cancellation behavior.

asyncioconcurrencystructured concurrencytask group
Illustration of Python asyncio TaskGroup managing multiple concurrent tasks with structured error handling.
Python

Using Python TaskGroup for Structured Concurrency

Learn how Python's asyncio.TaskGroup simplifies concurrent task management with structured error handling and automatic cancellation.

asynciostructured concurrencytaskgrouperror handling
A shield icon protecting a small task node from a cancellation arrow in a minimal asyncio event loop diagram.
Python

Python asyncio shield: Prevent Task Cancellation

Learn how asyncio.shield() protects coroutines from cancellation, where it falls short, and when to use it for cleanup and critical operations.

asynciocancellationcoroutinesevent loop
Illustration of a Python asyncio task being cancelled, showing the CancelledError exception and proper handling.
Python

Python Cancelled Error: Handling Task Cancellation

Understand Python's asyncio.CancelledError, when it is raised, and how to handle cancellation gracefully in asyncio tasks without breaking cleanup or swallowing the exception.

asynciocancellationexception handlingconcurrency
An illustration of a Python asyncio task being cancelled, showing a stop signal interrupting a coroutine.
Python

Python Task Cancellation in Asyncio

Learn how to cancel Python tasks in asyncio, handle CancelledError, and design cooperative cancellation for reliable cleanup and shutdown.

asynciotask cancellationconcurrencycooperative cancellation
Abstract illustration of an asyncio event signaling between coroutines in Python
Python

Using Python asyncio.Event for Coroutine Signaling

Learn how to use asyncio.Event to coordinate coroutines, handle timeouts and cancellation, and avoid common pitfalls in Python async programs.

asyncioconcurrencyevent-drivencoroutines
Illustration of an asyncio semaphore gate limiting the number of concurrent coroutines passing through
Python

Using Python asyncio Semaphore for Concurrency Control

Learn how to use python asyncio semaphore to limit concurrent coroutines, control resource usage, and avoid overwhelming external services.

asynciosemaphoreconcurrencyasync
Illustration of an asyncio lock guarding a shared resource between concurrent async tasks in Python
Python

Python asyncio Lock: Coordinating Concurrent Tasks

Learn how Python's asyncio.Lock coordinates concurrent tasks, prevents race conditions, and avoids the deadlocks that threading.Lock causes in async code.

asyncioconcurrencysynchronizationasync-await