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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

Diagram showing a Python object's instance attributes mapping to its __dict__ while class attributes remain shared.
Python

Python Instance Attributes: Storage, Lookup, and Pitfalls

Understand how Python stores instance attributes, how lookup order works, and how class attributes, properties, and slots change behavior.

instance attributespython classesattribute lookuppython slots
Illustration of Python class attributes with shared and instance-specific data
Python

Python Class Attributes: How They Work and Common Mistakes

Understand how Python class attributes behave, how they differ from instance attributes, and where they commonly cause bugs in real code.

Pythonclass attributesinstance attributesOOP
Illustration comparing a Python class blueprint to an object instance, showing the relationship between template and concrete object.
Python

Python Class vs Object: Key Differences and Use

Understand the practical difference between a Python class and an object: how instances are created, how attribute lookup works, and when to use a class instead of a simpler data structure.

python classesobject instancesOOP in Pythonattribute lookup
A Python class blueprint creating an instance object with attributes and memory slots.
Python

Python Instance: How Objects Are Created and Managed

python instance: Learn how Python instances are created, how __init__ and __new__ work, and how to manage attributes and memory with __slots__.

object-oriented programmingclassesinstantiationdunder methods
Illustration of a Python class blueprint transforming into a structured object, showing the two-step allocation and initialization process.
Python

Python Object Creation: __new__, __init__, and Beyond

Understand how Python creates objects, including the `__new__` and `__init__` sequence, dataclasses, factory methods, and memory tradeoffs.

pythonobject-oriented programmingdataclassesmetaclasses
Illustration of a Python class declaration showing a blueprint with attributes and methods.
Python

Python Class Declaration: Syntax and Practical Use

Learn how to declare classes in Python: syntax, __init__, attributes, methods, type hints, dataclasses, inheritance, and common pitfalls.

class syntaxobject-oriented programmingdataclassestype hints
Editorial illustration of a Python class blueprint showing instance attributes and methods connected to a central class node
Python

Python Class: Definition, Methods, and Practical Use

python class: Learn how to define and use Python classes: attributes, methods, inheritance, encapsulation, and when a dataclass or plain function is the better choice.

pythonoopclassesdataclasses
Illustration comparing Python's in-place list.sort() method with the sorted() built-in that returns a new list, showing mutation versus a fresh copy.
Python

Python sort vs sorted: In-Place vs New List

Python has two sorting options: list.sort() reorders a list in place and returns None, while sorted() returns a new sorted list from any iterable. This article compares their syntax, memory behavior, stability, and common use cases.

pythonsortinglist-sortsorted-function
Sorting custom Python objects by key function with a magnifying glass over a list of object attributes.
Python

Python Sort Custom Objects: Key Functions & __lt__

Sort custom Python objects by attribute or custom logic using key functions, attrgetter, and __lt__. Practical examples and performance notes.

sortingkey-functionsattrgetterrich-comparison
Illustration of sorting a list of tuples in Python by a selected tuple element
Python

Python Sorted List of Tuples: Sorting by Key and Order

Learn how to sort a list of tuples in Python by any element using sorted() with key functions, itemgetter, reverse order, and in-place sorting.

Pythonsortingtuplessorted()