Can someone please show me a working example of a monorepo, including relevant poetry commands for installation & packaging?

[matthewadams]

NB: I'm a python & poetry noob, but I have literally decades of professional software development experience in various modern environments.

I'm trying to establish a python monorepo that houses several library projects, and one or more runnable application projects. To protect the innocent, call the libraries core, foo & bar, and the runnable application, app. Every project will depend on core, and app will depend on foo & bar.

I've looked a few monorepo examples so far, and I continue to come up blank. The latest one I tried, referenced at https://github.com/orgs/python-poetry/discussions/7962#discussioncomment-6057387, is https://github.com/KPLauritzen/python-monorepo. I've cloned that locally. Here's what I tried on macos with the latest os updates as of this writing, and got scary red errors:

 2025-01-15 10:19:35 ⌚  zeus in ~/tmp/pymonorepos/KPLauritzen
○ → git clone [email protected]:KPLauritzen/python-monorepo.git
Cloning into 'python-monorepo'...
remote: Enumerating objects: 25, done.
remote: Counting objects: 100% (25/25), done.
remote: Compressing objects: 100% (20/20), done.
remote: Total 25 (delta 4), reused 25 (delta 4), pack-reused 0 (from 0)
Receiving objects: 100% (25/25), done.
Resolving deltas: 100% (4/4), done.

 2025-01-15 10:19:41 ⌚  zeus in ~/tmp/pymonorepos/KPLauritzen
○ → cd python-monorepo/

 2025-01-15 10:19:42 ⌚  zeus in ~/tmp/pymonorepos/KPLauritzen/python-monorepo
± |master ✓| → which python3
/opt/homebrew/bin/python3

 2025-01-15 10:19:52 ⌚  zeus in ~/tmp/pymonorepos/KPLauritzen/python-monorepo
± |master ✓| → which poetry
/opt/homebrew/bin/poetry

 2025-01-15 10:19:55 ⌚  zeus in ~/tmp/pymonorepos/KPLauritzen/python-monorepo
± |master ✓| → poetry install
The "poetry.dev-dependencies" section is deprecated and will be removed in a future version. Use "poetry.group.dev.dependencies" instead.
Installing dependencies from lock file

No dependencies to install or update

Installing the current project: python-monorepo (0.1.0)
Error: The current project could not be installed: No file/folder found for package python-monorepo
If you do not want to install the current project use --no-root.
If you want to use Poetry only for dependency management but not for packaging, you can disable package mode by setting package-mode = false in your pyproject.toml file.
If you did intend to install the current project, you may need to set `packages` in your pyproject.toml file.

 2025-01-15 10:20:02 ⌚  zeus in ~/tmp/pymonorepos/KPLauritzen/python-monorepo
± |master ✓| → poetry --version
Poetry (version 2.0.1)

What I'm looking for is at least pyproject.toml files & correct directory tree layout for the monorepo & each project that satisfies the following goals:

• Devs can clone, perform an initial poetry command to be able to begin development locally, hopefully with a friction-free development experience (mostly, if not exclusively, in JetBrains PyCharm).
• Most of the libraries will only be consumed privately by the app(s) in the monorepo, so it'd be ideal if the build of each app should somehow include the libraries it's consuming so that no package manager is required to run the app.
• Some of the libraries will be published to a package repository made available to customers, so we need to know how that affects the content of our pyproject.toml and other relevant project files.

Thanks in advance for your help!

[matthewadams]

Here's my starting point, which is intended to be an experimental proving ground that anyone can see & contribute to: https://github.com/matthewadams/python-poetry-monorepo

Would really appreciate PRs or any other help.

[ag14774]

Hey @matthewadams , I created a plugin that you might find useful: https://github.com/ag14774/poetry-monoranger-plugin