1 Prerequisites This skill 4 Unlocked

Skill · Development · Get started with the developer's craft in Python: read, test, review, ship

Read, install and modify a small Python tool

Read a small Python script or project you did not write and say what it does: entry point, inputs, outputs and exit codes, important files; install its declared and pinned dependencies in a fresh environment; then make a simple change to it, a condition or a function, that honours its contract.

Start lesson 1The Development domain

• 3 lessons
• ~2 h 35 of reading
• 4 quizzes
• 1 proof lab

The path

Where it comes from, where it leads

What you need to know first, where you stand on this skill, and what it opens next. Your status is computed in your browser, from what you have read and passed.

Before · 1 prerequisite

• Find your way around the tree and handle files and text from the command line

Recommended before · 5

• Write a tested command-line tool
• Automate in the shell and schedule tasks
• Read and transform data (JSON, YAML, APIs)
• Query and transform JSON on the command line with jq
• Consume a REST API reliably from a shell script

This skill, for you

Read, install and modify a small Python tool

Computing

It unlocks · 4 skills

• Review someone else's Python code and get your own checked
• Run pytest tests, read a failure and fix a simple defect
• Make a Python tool installable and versioned
• Instrument a service so it emits useful telemetry

Lessons

How to learn it

3 lessons, about ~2 h 35, in program order. Each lesson ends with its quiz.

The program

3 lessons · ~2 h 35

Part 1 · Découvrir Python quand on vient de l'exploitation (in French) 1 lesson · ~55 min

1. 1Lire et modifier un script Python qu'on n'a pas écrit (in French)· 55 min

Part 2 · Comprendre comment un script devient un outil (in French) 2 lessons · ~1 h 40

1. 2Structurer un projet Python en outil en ligne de commande (in French)· 50 min
2. 3Dépendances Python : déclarer, épingler, installer ailleurs (in French)· 50 min

Beyond the lessons

Assess, practise, pass the proof

Reading a lesson confirms nothing. A skill is confirmed by a passed quiz, practised in a guided lab, and put to the test by a challenge or a mission; an imported lab result is not verified by the site.

Assess yourself

4 quizzes

At the end of the lessons: passed at 70%, they confirm the skill.

Practice

4 guided labs

• Call an API with requests: certcheck opens its ticket
• Dependencies: certcheck installs elsewhere too
• Read and modify a small Python script: the inherited certcheck
• Understand a Python tool, then modify it: certcheck and its contract

Proof

1 practical proof

• Exam: step in on a small operations tool

A practical proof is a challenge, a capstone or a declared lab.

Used by the mission “Ship an internal tool to other teams”, which has its proof.

Apply it on real infrastructure

• Appeler une API REST avec Python et requests (in French)

Hands-on lessons: their labs count as practice and their quizzes assess you, without being required to acquire it.

Around it

Who requires it, who teaches it

Required by

• Linux Administrator
• Platform Engineer
• Site Reliability Engineer

Taught by

• Développer pour les Ops (in French)

Same block · Get started with the developer's craft in Python: read, test, review, ship

• Run pytest tests, read a failure and fix a simple defect
• Review someone else's Python code and get your own checked
• Make a Python tool installable and versioned

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