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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

Python code showing len() applied to a string variable, with a ruler illustrating character count
Python

Python String Length: How to Use len()

Learn how to use Python's len() to get string length, handle Unicode correctly, and understand why it's O(1).

PythonString Lengthlen() FunctionUnicode Strings
A stylized Python string with a ruler or length indicator, representing the len() function.
Python

Python String Length: Using len() Correctly

python string length: Learn how to get the length of a string in Python with len(), including Unicode code points, performance, and common pitfalls.

PythonStringlen()Unicode
Editorial illustration showing a short text string repeated multiple times using the multiplication operator in Python
Python

Python String Repetition with the * Operator

python string repetition: How the * operator repeats strings in Python, covering multiplier edge cases, practical uses, memory cost, and when join or format is better.

pythonstring manipulationpython operatorsstring methods
Illustration of a short text string being repeated into a longer sequence by a multiplication-like visual, showing the concept of string repetition in Python.
Python

Python String Multiplication: Syntax and Behavior

Learn how Python string multiplication works with the * operator, including syntax, edge cases, practical use cases, and memory behavior.

pythonstring-operationspython-syntaxmemory-usage
Diagram comparing Python string concatenation methods with the plus operator, join, and f-strings showing allocation behavior
Python

Python String Concatenation: Choosing the Right Approach

python string concatenation: Compare Python string concatenation approaches—+, join(), and f-strings—and learn which to use for readability, performance, and maintaina...

string concatenationf-stringsjoin methodPython performance
Illustration of Python f-string debug syntax showing a variable name and its value connected by an equals sign.
Python

Python f-string debug syntax: using = for variable inspection

Use Python's f-string `=` debug syntax to print variable names and values together. This guide covers expressions, format specifiers, conversion flags, pitfalls, and Python 3.8+ compatibility.

f-stringdebuggingpython-3.8string-formatting
Illustration of Python f-string expression showing variable interpolation and format specifiers.
Python

Python f-string Expressions: Syntax, Evaluation, and Pitfalls

Learn how Python f-string expressions work: syntax, evaluation, format specifiers, the `=` debugging shortcut, and common pitfalls.

f-stringsstring formattingPython syntaxexpression evaluation
Python f-string formatting code snippet with curly braces and format specifiers on a dark editor background.
Python

Python f-String Formatting: Syntax and Specifiers

python f string formatting: Learn Python f-string formatting: expression syntax, format specifiers, nested usage, and practical pitfalls for cleaner string interpolation.

f-stringsstring formattingPython syntaxformat specifiers
Python f-string syntax with curly braces and a formatted output example.
Python

Python F-String Usage: Syntax, Formatting, and Debugging

Learn how to use Python f-strings for clean string interpolation, formatting values, and debugging expressions with practical examples.

f-stringsstring formattingPython syntaxdebugging
Diagram showing an f-string with embedded variables and format specifiers in Python code.
Python

Python Formatted String Literals: Syntax and Usage

python formatted string literal: Understand Python formatted string literals (f-strings): syntax, expressions, format specifiers, performance, and common pitfalls for...

f-stringsstring formattingPython syntaxPython 3