Ruff
Ruff is an extremely fast Python linter and code formatter written in Rust. The main advantage of Ruff is its speed. Ruff is 10-100 times …
Metaclass
A metaclass in Python is a class that defines the behavior of other classes that are its instances. In a sense, a metaclass can be …
contextlib.redirect_stdout
The contextlib.redirect_stdout function in Python temporarily redirects the output of print() and other writing operations. It's useful when you need to write output to a …
Logical all and any
Built-in functions all() and any() are applied to sequences (lists, tuples, etc.) and return a bool value. all(iterable) — returns True if all elements in …
Deep Copying
Deep copying creates a completely independent copy of the original list, including all nested structures. This means that changes to nested lists or objects will …
Library Typer
Typer is a library for creating command-line interface applications in Python. It makes it easy to create CLI applications with support for arguments, options, subcommands, …
How PM2 Solved My Python Project's Production Challenges on Windows
As a solo Python developer working with a Windows production server, I faced several challenges keeping my Python applications running reliably. PM2, while primarily known …
Using the _ Operator to Reference the Last Result in Interactive Mode
In Python, when working in an interactive shell (such as REPL or Jupyter Notebook), you can use the underscore symbol _ to access the result …
Useful Functions of the itertools Module
The itertools module is a tool in Python for working with iterable objects. It provides various functions for creating and manipulating iterators, making it an …
Lecture 4: Iterators, generators and decorators
In this lecture, we will examine such important topics as containers and related concepts of iterators and generators. To conclude, we will look at decorators. …
Object Initialization and the self Argument
It's often not understood immediately, so just start using it and understanding will come sooner or later on its own. class Person: def __init__(self, name, …
Attributes of class
Variables that are defined at the class level are called attributes. class Person: name = 'Alex' age = 10 name and age are class attributes. …
Objects and Classes
What is dir() and how does it differ from __dict__? In Python, dir() is used to return a list of all attributes and methods of …
Using cachetools for caching in Python
cachetools is a small yet powerful library for caching that provides various caching strategies, such as LRU (Least Recently Used), LFU (Least Frequently Used), and …
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Using the itertools.tee() function to duplicate iterators
itertools.tee() is an interesting function from the itertools module that allows you to create multiple independent copies of the same iterator. 🗣️ This is useful …
Working with Date and Time
Dateutil provides extensions to the methods already available in datetime and includes features for processing raw data. Dateutil is divided into several subclasses: easter — …
Library for Working with Iterators
The built-in itertools package (https://docs.python.org/3/library/itertools.html) contains a collection of useful iterators. Let's talk about a few of them: combinations — returns a tuple in sorted …
Using functools.partialmethod to Create Partial Methods
functools.partialmethod This function allows you to create a partial method of a class by pre-fixing some of the method's arguments. This is useful when you …
Volume2 - Adjusting volume with mouse scroll on the taskbar
A small utility that allows you to adjust the volume at any time by simply hovering your mouse over the taskbar and then scrolling up/down. …
Using itertools.combinations_with_replacement to generate combinations with repetition
itertools.combinations_with_replacement is a useful function from the itertools module that allows you to create combinations of elements with repetition. This is convenient when you need …
Tenacity is a powerful library for implementing retries.
Tenacity is a library for implementing automatic retries when errors occur. It allows you to easily add retry logic to any function or block of …