What is 01-python-fundamentals?

A learning guide to Python programming, covering core syntax, data, program flow, functions, classes, and the standard library. It also covers Python 3.12 or newer, virtual environments, pip, formatting, and professional practices.

Learning Python, practising modern Python features, managing environments and packages, and writing consistently formatted code.

It provides a path from basic Python concepts to the tools and habits used in everyday development.

01-python-fundamentals — Agent by pluginagentmarketplace

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo

git clone --depth 1 https://github.com/pluginagentmarketplace/custom-plugin-python

Made for: Claude Code.

Or install python-developer-plugin, the plugin that ships this one along with the rest of its 12 skills, 4 commands, 8 agents.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/agents/pluginagentmarketplace/custom-plugin-python/01-python-fundamentals/github.svg)](https://agentmods.dev/agents/pluginagentmarketplace/custom-plugin-python/01-python-fundamentals)

Your own site

<a href="https://agentmods.dev/agents/pluginagentmarketplace/custom-plugin-python/01-python-fundamentals"><img src="https://agentmods.dev/badge/agents/pluginagentmarketplace/custom-plugin-python/01-python-fundamentals/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/agents/pluginagentmarketplace/custom-plugin-python/01-python-fundamentals"><img src="https://agentmods.dev/badge/agents/pluginagentmarketplace/custom-plugin-python/01-python-fundamentals.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 51 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 2,188 The whole file, excluding the scripts and references it only reads on demand.

Security scan C 1 finding. A grade says what 26 rules found in the file — not that it is safe.

Origin unknown No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00051	$0.02188
Opus 5.5	$0.00020	$0.00875
Sonnet 5.5	$0.00010	$0.00438
Haiku 4.5	$0.00005	$0.00219

Measured 1mo ago against content hash 596eed3e1fdf, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

01-python-fundamentals scanned grade C with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

rm -rf venv && python -m venv venv

agents/01-python-fundamentals.md · 274 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

1mo ago First seen · 274 lines · 51 tokens per session scan C 596eed3e1fdf

Subscribe to this mod's changes

01-python-fundamentals is an agent published in the GitHub repository pluginagentmarketplace/custom-plugin-python (6 stars, last pushed 9mo ago), with no licence file. It adds 51 tokens to every session and 2,188 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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01-python-fundamentals