QA
Senior LevelPython

How has modern Python dependency management transitioned from setup.py and requirements.txt to pyproject.toml (PEP 517/518) and Rust-powered uv?

❓ Interview Prompt: Explain `pyproject.toml`, PEP 517/518 build isolation, build backends (Hatchling, Flit, Poetry), and Rust-powered `uv` package resolver.

Modern Python packaging has standardized around 'pyproject.toml' (PEP 517/518):

Rust-Powered Packaging ('uv'):

'uv' (written in Rust by Astral) replaces legacy 'pip' and 'poetry', resolving dependency trees and building virtual environments 10x-100x faster than traditional tools!

Code Implementation Example

toml
# pyproject.toml configuration
[build-system]
requires = ["hatchling"]
build-backend = "hatchling.build"

[project]
name = "my-package"
version = "1.0.0"
dependencies = [
    "pydantic>=2.0.0",
    "httpx>=0.25.0"
]
💡Standard pyproject.toml build configuration under PEP 517/518.
🎯 Interview Key Takeaway

Standardize project configurations around pyproject.toml and use Rust-powered uv for 100x faster package installation.

#pyproject.toml#uv#Packaging#PEP 517#Senior
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