feat: add an option to generate a project with package mode = false

[danielepintore]

Pull Request Check List

Resolves: #9447

• [x] Added tests for changed code.
• [ ] Updated documentation for changed code.

This small pull request adds an option to disable package mode: -N and ----disable-package-mode. When this options are enabled optional field in the pyproject.toml are skipped if the user leaves the default value

Summary by Sourcery

Add a disable-package-mode option to poetry init that marks package-mode as false and skips default optional metadata fields in the generated pyproject.toml

New Features:

• Add --disable-package-mode (-N) flag to the init command to toggle package mode

Enhancements:

• Omit default optional fields (version, description, authors) when package mode is disabled

Tests:

• Cover disable-package-mode behavior in init, including flag recognition and pyproject.toml content adjustments

[sourcery-ai[bot]]

Reviewer's Guide

Adds a new CLI flag to disable package mode during project initialization, propagates the flag through the init command into the layout generator, and updates the layout to skip optional fields and include package-mode metadata, accompanied by new tests.

Sequence diagram for project initialization with package mode option

sequenceDiagram
    actor User
    participant CLI as Poetry CLI
    participant InitCommand
    participant Layout
    User->>CLI: poetry init -N
    CLI->>InitCommand: parse options (disable-package-mode)
    InitCommand->>Layout: __init__(..., package_mode=False)
    InitCommand->>Layout: generate_project_content()
    Layout-->>InitCommand: project content (skipping optional fields)
    InitCommand-->>CLI: write pyproject.toml

Class diagram for InitCommand and Layout changes

classDiagram
    class InitCommand {
        +_init_pyproject(...)
        +option("disable-package-mode", "-N", ...)
    }
    class Layout {
        +__init__(..., package_mode: bool = True)
        +generate_project_content() TOMLDocument
        -_package_mode: bool
    }
    InitCommand --> Layout : uses

File-Level Changes

Change	Details	Files
Introduce disable-package-mode option in the init command	Add --disable-package-mode (-N) flag to init command options Adjust interactive prompts and default values to clear version when flag is active Pass package_mode boolean from CLI into project layout generation	src/poetry/console/commands/init.py
Extend layout generator to honor package_mode flag	Add package_mode parameter to Layout constructor and store in instance Define POETRY_DEFAULT_AUTHOR constant and use it for default author value Remove authors, version, and description entries when package_mode is false Inject package-mode = false into the generated [tool.poetry] section	src/poetry/layouts/layout.py
Add tests for disabling package mode	Test long and short flags produce package-mode=false in pyproject.toml Verify optional fields (version, description, authors) are omitted when disabling package mode Ensure author entry with email is preserved correctly even when optional fields are removed	tests/console/commands/test_init.py

Possibly linked issues

• #9447: The PR implements the --disable-package-mode flag for poetry init to generate the [tool.poetry] layout, directly addressing the issue's request for a classic layout option.
• #9447: The PR adds a --disable-package-mode option to init, explicitly setting package-mode = false in pyproject.toml, addressing the issue's goal of explicit package declaration.

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[deronnax]

It has not moved forward for a month. If @danielepintore can't finish it, I volunter to take it over.