Your Python Toolchain Is Costing You Real Money — And You're Probably Fine With That Let's be honest. Most Python teams in 2026 are still running flake8, black, isort, and Poetry side by side like it's 2021. Three separate lint processes, a formatter that argues with your import sorter, a dependency manager with a 40-second install time, and a pyproject.toml that looks like it was configured by a committee. Nobody chose this setup deliberately — it just accumulated, sprint by sprint, like technical debt usually does. The uncomfortable question: how much CI time does your team burn per week on tooling that has already been replaced by something an order of magnitude faster? The Numbers Are Not in Your Favor Ruff — a Python linter and formatter written in Rust — lints the entire CPython repository (680 000+ lines) in under 0.5 seconds. Flake8 takes 30–40 seconds on the same codebase. That's not a benchmark cherry-picked from a blog post. That's reproducible on your machine, today. Do the math for your team.…