Skill

Fuck Old Python

From asi

Enforces Python 3.13+ by rejecting projects or dependencies needing older versions, suggesting forks, containers, or replacements instead of downgrading.

Python

Docker

code-quality

backend

npx claudepluginhub plurigrid/asi --plugin asi

Tool Access

This skill uses the workspace's default tool permissions.

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When a dependency, tool, or project requires Python < 3.13:

SKILL.md

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Stats

Parent Repo Stars16

Parent Repo Forks5

Last CommitApr 4, 2026

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Fuck Old Python

When a dependency, tool, or project requires Python < 3.13:

Do not install an old Python version. Not via uv, pyenv, brew, nix, or anything else.

Do not create venvs with old interpreters.

Do not add compatibility shims.

Say what's broken and why. Name the exact dependency and version constraint.

Find alternatives:

Fork and patch the dependency
Use a container (Docker/OCI) to isolate the rot
Run it on a remote machine that already has the old version
Find a modern replacement
Tell the maintainer to update

The Principle

Modern Python (3.13+) is the floor. Projects that can't run on current Python are unmaintained or hostile to their users. We don't bend our environment to accommodate them — they bend to us, or they get replaced.

Phrases to Use

"This requires Python 3.11 — that's two years old and we don't install legacy interpreters."

"The dependency X pins to python < 3.13. File an issue or fork it."

"Running this in a container instead of poisoning the host env."

What Counts as Poison

uv python install 3.11 (or any version < 3.13)

pyenv install 3.10.x

Adding python_requires = "<3.13" anywhere

Downgrading typing_extensions, regex, or any stdlib backport to accommodate old code

Fuck Old Python

When a dependency, tool, or project requires Python < 3.13:

Do not install an old Python version. Not via uv, pyenv, brew, nix, or anything else.
Do not create venvs with old interpreters.
Do not add compatibility shims.
Say what's broken and why. Name the exact dependency and version constraint.
Find alternatives:
- Fork and patch the dependency
- Use a container (Docker/OCI) to isolate the rot
- Run it on a remote machine that already has the old version
- Find a modern replacement
- Tell the maintainer to update

The Principle

Phrases to Use

"This requires Python 3.11 — that's two years old and we don't install legacy interpreters."
"The dependency X pins to python < 3.13. File an issue or fork it."
"Running this in a container instead of poisoning the host env."

What Counts as Poison

uv python install 3.11 (or any version < 3.13)
pyenv install 3.10.x
Adding python_requires = "<3.13" anywhere
Downgrading typing_extensions, regex, or any stdlib backport to accommodate old code