Introduction

Modern Python development has evolved significantly, bringing new tools and best practices that enhance productivity and code quality. This guide explores the essential practices and tools that every Python developer should know in 2024.

Development Environment Setup

# Setting up a new Python project
python -m venv venv
source venv/bin/activate  # or venv\Scripts\activate on Windows
pip install --upgrade pip
                            

Code Quality and Testing

# Example of modern Python testing
import pytest
from typing import List

def calculate_total(numbers: List[int]) -> int:
    return sum(numbers)

def test_calculate_total():
    assert calculate_total([1, 2, 3]) == 6
    assert calculate_total([]) == 0
                            

Dependency Management

Modern Python projects require robust dependency management. Here are the best practices:

Modern Python Features

from typing import Optional

def get_user(user_id: int) -> Optional[dict]:
    ...
                                    

async def fetch_data():

    async with aiohttp.ClientSession() as session:
        ...
                                    

Best Practices and Tips